text: /*!
    * Bootstrap v4.3.1 (https://getbootstrap.com/)
    * Copyright 2011-2019 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
    * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
    */
  (function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('jquery')) :
    typeof define === 'function' && define.amd ? define(['exports', 'jquery'], factory) :
    (global = global || self, factory(global.bootstrap = {}, global.jQuery));
  }(this, function (exports, $) { 'use strict';
  
    $ = $ && $.hasOwnProperty('default') ? $['default'] : $;
  
    function _defineProperties(target, props) {
      for (var i = 0; i < props.length; i++) {
        var descriptor = props[i];
        descriptor.enumerable = descriptor.enumerable || false;
        descriptor.configurable = true;
        if ("value" in descriptor) descriptor.writable = true;
        Object.defineProperty(target, descriptor.key, descriptor);
      }
    }
  
    function _createClass(Constructor, protoProps, staticProps) {
      if (protoProps) _defineProperties(Constructor.prototype, protoProps);
      if (staticProps) _defineProperties(Constructor, staticProps);
      return Constructor;
    }
  
    function _defineProperty(obj, key, value) {
      if (key in obj) {
        Object.defineProperty(obj, key, {
          value: value,
          enumerable: true,
          configurable: true,
          writable: true
        });
      } else {
        obj[key] = value;
      }
  
      return obj;
    }
  
    function _objectSpread(target) {
      for (var i = 1; i < arguments.length; i++) {
        var source = arguments[i] != null ? arguments[i] : {};
        var ownKeys = Object.keys(source);
  
        if (typeof Object.getOwnPropertySymbols === 'function') {
          ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
            return Object.getOwnPropertyDescriptor(source, sym).enumerable;
          }));
        }
  
        ownKeys.forEach(function (key) {
          _defineProperty(target, key, source[key]);
        });
      }
  
      return target;
    }
  
    function _inheritsLoose(subClass, superClass) {
      subClass.prototype = Object.create(superClass.prototype);
      subClass.prototype.constructor = subClass;
      subClass.__proto__ = superClass;
    }
  
    /**
     * --------------------------------------------------------------------------
     * Bootstrap (v4.3.1): util.js
     * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
     * --------------------------------------------------------------------------
     */
    /**
     * ------------------------------------------------------------------------
     * Private TransitionEnd Helpers
     * ------------------------------------------------------------------------
     */
  
    var TRANSITION_END = 'transitionend';
    var MAX_UID = 1000000;
    var MILLISECONDS_MULTIPLIER = 1000; // Shoutout AngusCroll (https://goo.gl/pxwQGp)
  
    function toType(obj) {
      return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
    }
  
    function getSpecialTransitionEndEvent() {
      return {
        bindType: TRANSITION_END,
        delegateType: TRANSITION_END,
        handle: function handle(event) {
          if ($(event.target).is(this)) {
            return event.handleObj.handler.apply(this, arguments); // eslint-disable-line prefer-rest-params
          }
  
          return undefined; // eslint-disable-line no-undefined
        }
      };
    }
  
    function transitionEndEmulator(duration) {
      var _this = this;
  
      var called = false;
      $(this).one(Util.TRANSITION_END, function () {
        called = true;
      });
      setTimeout(function () {
        if (!called) {
          Util.triggerTransitionEnd(_this);
        }
      }, duration);
      return this;
    }
  
    function setTransitionEndSupport() {
      $.fn.emulateTransitionEnd = transitionEndEmulator;
      $.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent();
    }
    /**
     * --------------------------------------------------------------------------
     * Public Util Api
     * --------------------------------------------------------------------------
     */
  
  
    var Util = {
      TRANSITION_END: 'bsTransitionEnd',
      getUID: function getUID(prefix) {
        do {
          // eslint-disable-next-line no-bitwise
          prefix += ~~(Math.random() * MAX_UID); // "~~" acts like a faster Math.floor() here
        } while (document.getElementById(prefix));
  
        return prefix;
      },
      getSelectorFromElement: function getSelectorFromElement(element) {
        var selector = element.getAttribute('data-target');
  
        if (!selector || selector === '#') {
          var hrefAttr = element.getAttribute('href');
          selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : '';
        }
  
        try {
          return document.querySelector(selector) ? selector : null;
        } catch (err) {
          return null;
        }
      },
      getTransitionDurationFromElement: function getTransitionDurationFromElement(element) {
        if (!element) {
          return 0;
        } // Get transition-duration of the element
  
  
        var transitionDuration = $(element).css('transition-duration');
        var transitionDelay = $(element).css('transition-delay');
        var floatTransitionDuration = parseFloat(transitionDuration);
        var floatTransitionDelay = parseFloat(transitionDelay); // Return 0 if element or transition duration is not found
  
        if (!floatTransitionDuration && !floatTransitionDelay) {
          return 0;
        } // If multiple durations are defined, take the first
  
  
        transitionDuration = transitionDuration.split(',')[0];
        transitionDelay = transitionDelay.split(',')[0];
        return (parseFloat(transitionDuration) + parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER;
      },
      reflow: function reflow(element) {
        return element.offsetHeight;
      },
      triggerTransitionEnd: function triggerTransitionEnd(element) {
        $(element).trigger(TRANSITION_END);
      },
      // TODO: Remove in v5
      supportsTransitionEnd: function supportsTransitionEnd() {
        return Boolean(TRANSITION_END);
      },
      isElement: function isElement(obj) {
        return (obj[0] || obj).nodeType;
      },
      typeCheckConfig: function typeCheckConfig(componentName, config, configTypes) {
        for (var property in configTypes) {
          if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
            var expectedTypes = configTypes[property];
            var value = config[property];
            var valueType = value && Util.isElement(value) ? 'element' : toType(value);
  
            if (!new RegExp(expectedTypes).test(valueType)) {
              throw new Error(componentName.toUpperCase() + ": " + ("Option \"" + property + "\" provided type \"" + valueType + "\" ") + ("but expected type \"" + expectedTypes + "\"."));
            }
          }
        }
      },
      findShadowRoot: function findShadowRoot(element) {
        if (!document.documentElement.attachShadow) {
          return null;
        } // Can find the shadow root otherwise it'll return the document
  
  
        if (typeof element.getRootNode === 'function') {
          var root = element.getRootNode();
          return root instanceof ShadowRoot ? root : null;
        }
  
        if (element instanceof ShadowRoot) {
          return element;
        } // when we don't find a shadow root
  
  
        if (!element.parentNode) {
          return null;
        }
  
        return Util.findShadowRoot(element.parentNode);
      }
    };
    setTransitionEndSupport();
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME = 'alert';
    var VERSION = '4.3.1';
    var DATA_KEY = 'bs.alert';
    var EVENT_KEY = "." + DATA_KEY;
    var DATA_API_KEY = '.data-api';
    var JQUERY_NO_CONFLICT = $.fn[NAME];
    var Selector = {
      DISMISS: '[data-dismiss="alert"]'
    };
    var Event = {
      CLOSE: "close" + EVENT_KEY,
      CLOSED: "closed" + EVENT_KEY,
      CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
    };
    var ClassName = {
      ALERT: 'alert',
      FADE: 'fade',
      SHOW: 'show'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */
  
    };
  
    var Alert =
    /*#__PURE__*/
    function () {
      function Alert(element) {
        this._element = element;
      } // Getters
  
  
      var _proto = Alert.prototype;
  
      // Public
      _proto.close = function close(element) {
        var rootElement = this._element;
  
        if (element) {
          rootElement = this._getRootElement(element);
        }
  
        var customEvent = this._triggerCloseEvent(rootElement);
  
        if (customEvent.isDefaultPrevented()) {
          return;
        }
  
        this._removeElement(rootElement);
      };
  
      _proto.dispose = function dispose() {
        $.removeData(this._element, DATA_KEY);
        this._element = null;
      } // Private
      ;
  
      _proto._getRootElement = function _getRootElement(element) {
        var selector = Util.getSelectorFromElement(element);
        var parent = false;
  
        if (selector) {
          parent = document.querySelector(selector);
        }
  
        if (!parent) {
          parent = $(element).closest("." + ClassName.ALERT)[0];
        }
  
        return parent;
      };
  
      _proto._triggerCloseEvent = function _triggerCloseEvent(element) {
        var closeEvent = $.Event(Event.CLOSE);
        $(element).trigger(closeEvent);
        return closeEvent;
      };
  
      _proto._removeElement = function _removeElement(element) {
        var _this = this;
  
        $(element).removeClass(ClassName.SHOW);
  
        if (!$(element).hasClass(ClassName.FADE)) {
          this._destroyElement(element);
  
          return;
        }
  
        var transitionDuration = Util.getTransitionDurationFromElement(element);
        $(element).one(Util.TRANSITION_END, function (event) {
          return _this._destroyElement(element, event);
        }).emulateTransitionEnd(transitionDuration);
      };
  
      _proto._destroyElement = function _destroyElement(element) {
        $(element).detach().trigger(Event.CLOSED).remove();
      } // Static
      ;
  
      Alert._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var $element = $(this);
          var data = $element.data(DATA_KEY);
  
          if (!data) {
            data = new Alert(this);
            $element.data(DATA_KEY, data);
          }
  
          if (config === 'close') {
            data[config](this);
          }
        });
      };
  
      Alert._handleDismiss = function _handleDismiss(alertInstance) {
        return function (event) {
          if (event) {
            event.preventDefault();
          }
  
          alertInstance.close(this);
        };
      };
  
      _createClass(Alert, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION;
        }
      }]);
  
      return Alert;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */
  
  
    $(document).on(Event.CLICK_DATA_API, Selector.DISMISS, Alert._handleDismiss(new Alert()));
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
    $.fn[NAME] = Alert._jQueryInterface;
    $.fn[NAME].Constructor = Alert;
  
    $.fn[NAME].noConflict = function () {
      $.fn[NAME] = JQUERY_NO_CONFLICT;
      return Alert._jQueryInterface;
    };
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME$1 = 'button';
    var VERSION$1 = '4.3.1';
    var DATA_KEY$1 = 'bs.button';
    var EVENT_KEY$1 = "." + DATA_KEY$1;
    var DATA_API_KEY$1 = '.data-api';
    var JQUERY_NO_CONFLICT$1 = $.fn[NAME$1];
    var ClassName$1 = {
      ACTIVE: 'active',
      BUTTON: 'btn',
      FOCUS: 'focus'
    };
    var Selector$1 = {
      DATA_TOGGLE_CARROT: '[data-toggle^="button"]',
      DATA_TOGGLE: '[data-toggle="buttons"]',
      INPUT: 'input:not([type="hidden"])',
      ACTIVE: '.active',
      BUTTON: '.btn'
    };
    var Event$1 = {
      CLICK_DATA_API: "click" + EVENT_KEY$1 + DATA_API_KEY$1,
      FOCUS_BLUR_DATA_API: "focus" + EVENT_KEY$1 + DATA_API_KEY$1 + " " + ("blur" + EVENT_KEY$1 + DATA_API_KEY$1)
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */
  
    };
  
    var Button =
    /*#__PURE__*/
    function () {
      function Button(element) {
        this._element = element;
      } // Getters
  
  
      var _proto = Button.prototype;
  
      // Public
      _proto.toggle = function toggle() {
        var triggerChangeEvent = true;
        var addAriaPressed = true;
        var rootElement = $(this._element).closest(Selector$1.DATA_TOGGLE)[0];
  
        if (rootElement) {
          var input = this._element.querySelector(Selector$1.INPUT);
  
          if (input) {
            if (input.type === 'radio') {
              if (input.checked && this._element.classList.contains(ClassName$1.ACTIVE)) {
                triggerChangeEvent = false;
              } else {
                var activeElement = rootElement.querySelector(Selector$1.ACTIVE);
  
                if (activeElement) {
                  $(activeElement).removeClass(ClassName$1.ACTIVE);
                }
              }
            }
  
            if (triggerChangeEvent) {
              if (input.hasAttribute('disabled') || rootElement.hasAttribute('disabled') || input.classList.contains('disabled') || rootElement.classList.contains('disabled')) {
                return;
              }
  
              input.checked = !this._element.classList.contains(ClassName$1.ACTIVE);
              $(input).trigger('change');
            }
  
            input.focus();
            addAriaPressed = false;
          }
        }
  
        if (addAriaPressed) {
          this._element.setAttribute('aria-pressed', !this._element.classList.contains(ClassName$1.ACTIVE));
        }
  
        if (triggerChangeEvent) {
          $(this._element).toggleClass(ClassName$1.ACTIVE);
        }
      };
  
      _proto.dispose = function dispose() {
        $.removeData(this._element, DATA_KEY$1);
        this._element = null;
      } // Static
      ;
  
      Button._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $(this).data(DATA_KEY$1);
  
          if (!data) {
            data = new Button(this);
            $(this).data(DATA_KEY$1, data);
          }
  
          if (config === 'toggle') {
            data[config]();
          }
        });
      };
  
      _createClass(Button, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION$1;
        }
      }]);
  
      return Button;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */
  
  
    $(document).on(Event$1.CLICK_DATA_API, Selector$1.DATA_TOGGLE_CARROT, function (event) {
      event.preventDefault();
      var button = event.target;
  
      if (!$(button).hasClass(ClassName$1.BUTTON)) {
        button = $(button).closest(Selector$1.BUTTON);
      }
  
      Button._jQueryInterface.call($(button), 'toggle');
    }).on(Event$1.FOCUS_BLUR_DATA_API, Selector$1.DATA_TOGGLE_CARROT, function (event) {
      var button = $(event.target).closest(Selector$1.BUTTON)[0];
      $(button).toggleClass(ClassName$1.FOCUS, /^focus(in)?$/.test(event.type));
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
    $.fn[NAME$1] = Button._jQueryInterface;
    $.fn[NAME$1].Constructor = Button;
  
    $.fn[NAME$1].noConflict = function () {
      $.fn[NAME$1] = JQUERY_NO_CONFLICT$1;
      return Button._jQueryInterface;
    };
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME$2 = 'carousel';
    var VERSION$2 = '4.3.1';
    var DATA_KEY$2 = 'bs.carousel';
    var EVENT_KEY$2 = "." + DATA_KEY$2;
    var DATA_API_KEY$2 = '.data-api';
    var JQUERY_NO_CONFLICT$2 = $.fn[NAME$2];
    var ARROW_LEFT_KEYCODE = 37; // KeyboardEvent.which value for left arrow key
  
    var ARROW_RIGHT_KEYCODE = 39; // KeyboardEvent.which value for right arrow key
  
    var TOUCHEVENT_COMPAT_WAIT = 500; // Time for mouse compat events to fire after touch
  
    var SWIPE_THRESHOLD = 40;
    var Default = {
      interval: 5000,
      keyboard: true,
      slide: false,
      pause: 'hover',
      wrap: true,
      touch: true
    };
    var DefaultType = {
      interval: '(number|boolean)',
      keyboard: 'boolean',
      slide: '(boolean|string)',
      pause: '(string|boolean)',
      wrap: 'boolean',
      touch: 'boolean'
    };
    var Direction = {
      NEXT: 'next',
      PREV: 'prev',
      LEFT: 'left',
      RIGHT: 'right'
    };
    var Event$2 = {
      SLIDE: "slide" + EVENT_KEY$2,
      SLID: "slid" + EVENT_KEY$2,
      KEYDOWN: "keydown" + EVENT_KEY$2,
      MOUSEENTER: "mouseenter" + EVENT_KEY$2,
      MOUSELEAVE: "mouseleave" + EVENT_KEY$2,
      TOUCHSTART: "touchstart" + EVENT_KEY$2,
      TOUCHMOVE: "touchmove" + EVENT_KEY$2,
      TOUCHEND: "touchend" + EVENT_KEY$2,
      POINTERDOWN: "pointerdown" + EVENT_KEY$2,
      POINTERUP: "pointerup" + EVENT_KEY$2,
      DRAG_START: "dragstart" + EVENT_KEY$2,
      LOAD_DATA_API: "load" + EVENT_KEY$2 + DATA_API_KEY$2,
      CLICK_DATA_API: "click" + EVENT_KEY$2 + DATA_API_KEY$2
    };
    var ClassName$2 = {
      CAROUSEL: 'carousel',
      ACTIVE: 'active',
      SLIDE: 'slide',
      RIGHT: 'carousel-item-right',
      LEFT: 'carousel-item-left',
      NEXT: 'carousel-item-next',
      PREV: 'carousel-item-prev',
      ITEM: 'carousel-item',
      POINTER_EVENT: 'pointer-event'
    };
    var Selector$2 = {
      ACTIVE: '.active',
      ACTIVE_ITEM: '.active.carousel-item',
      ITEM: '.carousel-item',
      ITEM_IMG: '.carousel-item img',
      NEXT_PREV: '.carousel-item-next, .carousel-item-prev',
      INDICATORS: '.carousel-indicators',
      DATA_SLIDE: '[data-slide], [data-slide-to]',
      DATA_RIDE: '[data-ride="carousel"]'
    };
    var PointerType = {
      TOUCH: 'touch',
      PEN: 'pen'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */
  
    };
  
    var Carousel =
    /*#__PURE__*/
    function () {
      function Carousel(element, config) {
        this._items = null;
        this._interval = null;
        this._activeElement = null;
        this._isPaused = false;
        this._isSliding = false;
        this.touchTimeout = null;
        this.touchStartX = 0;
        this.touchDeltaX = 0;
        this._config = this._getConfig(config);
        this._element = element;
        this._indicatorsElement = this._element.querySelector(Selector$2.INDICATORS);
        this._touchSupported = 'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0;
        this._pointerEvent = Boolean(window.PointerEvent || window.MSPointerEvent);
  
        this._addEventListeners();
      } // Getters
  
  
      var _proto = Carousel.prototype;
  
      // Public
      _proto.next = function next() {
        if (!this._isSliding) {
          this._slide(Direction.NEXT);
        }
      };
  
      _proto.nextWhenVisible = function nextWhenVisible() {
        // Don't call next when the page isn't visible
        // or the carousel or its parent isn't visible
        if (!document.hidden && $(this._element).is(':visible') && $(this._element).css('visibility') !== 'hidden') {
          this.next();
        }
      };
  
      _proto.prev = function prev() {
        if (!this._isSliding) {
          this._slide(Direction.PREV);
        }
      };
  
      _proto.pause = function pause(event) {
        if (!event) {
          this._isPaused = true;
        }
  
        if (this._element.querySelector(Selector$2.NEXT_PREV)) {
          Util.triggerTransitionEnd(this._element);
          this.cycle(true);
        }
  
        clearInterval(this._interval);
        this._interval = null;
      };
  
      _proto.cycle = function cycle(event) {
        if (!event) {
          this._isPaused = false;
        }
  
        if (this._interval) {
          clearInterval(this._interval);
          this._interval = null;
        }
  
        if (this._config.interval && !this._isPaused) {
          this._interval = setInterval((document.visibilityState ? this.nextWhenVisible : this.next).bind(this), this._config.interval);
        }
      };
  
      _proto.to = function to(index) {
        var _this = this;
  
        this._activeElement = this._element.querySelector(Selector$2.ACTIVE_ITEM);
  
        var activeIndex = this._getItemIndex(this._activeElement);
  
        if (index > this._items.length - 1 || index < 0) {
          return;
        }
  
        if (this._isSliding) {
          $(this._element).one(Event$2.SLID, function () {
            return _this.to(index);
          });
          return;
        }
  
        if (activeIndex === index) {
          this.pause();
          this.cycle();
          return;
        }
  
        var direction = index > activeIndex ? Direction.NEXT : Direction.PREV;
  
        this._slide(direction, this._items[index]);
      };
  
      _proto.dispose = function dispose() {
        $(this._element).off(EVENT_KEY$2);
        $.removeData(this._element, DATA_KEY$2);
        this._items = null;
        this._config = null;
        this._element = null;
        this._interval = null;
        this._isPaused = null;
        this._isSliding = null;
        this._activeElement = null;
        this._indicatorsElement = null;
      } // Private
      ;
  
      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, Default, config);
        Util.typeCheckConfig(NAME$2, config, DefaultType);
        return config;
      };
  
      _proto._handleSwipe = function _handleSwipe() {
        var absDeltax = Math.abs(this.touchDeltaX);
  
        if (absDeltax <= SWIPE_THRESHOLD) {
          return;
        }
  
        var direction = absDeltax / this.touchDeltaX; // swipe left
  
        if (direction > 0) {
          this.prev();
        } // swipe right
  
  
        if (direction < 0) {
          this.next();
        }
      };
  
      _proto._addEventListeners = function _addEventListeners() {
        var _this2 = this;
  
        if (this._config.keyboard) {
          $(this._element).on(Event$2.KEYDOWN, function (event) {
            return _this2._keydown(event);
          });
        }
  
        if (this._config.pause === 'hover') {
          $(this._element).on(Event$2.MOUSEENTER, function (event) {
            return _this2.pause(event);
          }).on(Event$2.MOUSELEAVE, function (event) {
            return _this2.cycle(event);
          });
        }
  
        if (this._config.touch) {
          this._addTouchEventListeners();
        }
      };
  
      _proto._addTouchEventListeners = function _addTouchEventListeners() {
        var _this3 = this;
  
        if (!this._touchSupported) {
          return;
        }
  
        var start = function start(event) {
          if (_this3._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
            _this3.touchStartX = event.originalEvent.clientX;
          } else if (!_this3._pointerEvent) {
            _this3.touchStartX = event.originalEvent.touches[0].clientX;
          }
        };
  
        var move = function move(event) {
          // ensure swiping with one touch and not pinching
          if (event.originalEvent.touches && event.originalEvent.touches.length > 1) {
            _this3.touchDeltaX = 0;
          } else {
            _this3.touchDeltaX = event.originalEvent.touches[0].clientX - _this3.touchStartX;
          }
        };
  
        var end = function end(event) {
          if (_this3._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
            _this3.touchDeltaX = event.originalEvent.clientX - _this3.touchStartX;
          }
  
          _this3._handleSwipe();
  
          if (_this3._config.pause === 'hover') {
            // If it's a touch-enabled device, mouseenter/leave are fired as
            // part of the mouse compatibility events on first tap - the carousel
            // would stop cycling until user tapped out of it;
            // here, we listen for touchend, explicitly pause the carousel
            // (as if it's the second time we tap on it, mouseenter compat event
            // is NOT fired) and after a timeout (to allow for mouse compatibility
            // events to fire) we explicitly restart cycling
            _this3.pause();
  
            if (_this3.touchTimeout) {
              clearTimeout(_this3.touchTimeout);
            }
  
            _this3.touchTimeout = setTimeout(function (event) {
              return _this3.cycle(event);
            }, TOUCHEVENT_COMPAT_WAIT + _this3._config.interval);
          }
        };
  
        $(this._element.querySelectorAll(Selector$2.ITEM_IMG)).on(Event$2.DRAG_START, function (e) {
          return e.preventDefault();
        });
  
        if (this._pointerEvent) {
          $(this._element).on(Event$2.POINTERDOWN, function (event) {
            return start(event);
          });
          $(this._element).on(Event$2.POINTERUP, function (event) {
            return end(event);
          });
  
          this._element.classList.add(ClassName$2.POINTER_EVENT);
        } else {
          $(this._element).on(Event$2.TOUCHSTART, function (event) {
            return start(event);
          });
          $(this._element).on(Event$2.TOUCHMOVE, function (event) {
            return move(event);
          });
          $(this._element).on(Event$2.TOUCHEND, function (event) {
            return end(event);
          });
        }
      };
  
      _proto._keydown = function _keydown(event) {
        if (/input|textarea/i.test(event.target.tagName)) {
          return;
        }
  
        switch (event.which) {
          case ARROW_LEFT_KEYCODE:
            event.preventDefault();
            this.prev();
            break;
  
          case ARROW_RIGHT_KEYCODE:
            event.preventDefault();
            this.next();
            break;
  
          default:
        }
      };
  
      _proto._getItemIndex = function _getItemIndex(element) {
        this._items = element && element.parentNode ? [].slice.call(element.parentNode.querySelectorAll(Selector$2.ITEM)) : [];
        return this._items.indexOf(element);
      };
  
      _proto._getItemByDirection = function _getItemByDirection(direction, activeElement) {
        var isNextDirection = direction === Direction.NEXT;
        var isPrevDirection = direction === Direction.PREV;
  
        var activeIndex = this._getItemIndex(activeElement);
  
        var lastItemIndex = this._items.length - 1;
        var isGoingToWrap = isPrevDirection && activeIndex === 0 || isNextDirection && activeIndex === lastItemIndex;
  
        if (isGoingToWrap && !this._config.wrap) {
          return activeElement;
        }
  
        var delta = direction === Direction.PREV ? -1 : 1;
        var itemIndex = (activeIndex + delta) % this._items.length;
        return itemIndex === -1 ? this._items[this._items.length - 1] : this._items[itemIndex];
      };
  
      _proto._triggerSlideEvent = function _triggerSlideEvent(relatedTarget, eventDirectionName) {
        var targetIndex = this._getItemIndex(relatedTarget);
  
        var fromIndex = this._getItemIndex(this._element.querySelector(Selector$2.ACTIVE_ITEM));
  
        var slideEvent = $.Event(Event$2.SLIDE, {
          relatedTarget: relatedTarget,
          direction: eventDirectionName,
          from: fromIndex,
          to: targetIndex
        });
        $(this._element).trigger(slideEvent);
        return slideEvent;
      };
  
      _proto._setActiveIndicatorElement = function _setActiveIndicatorElement(element) {
        if (this._indicatorsElement) {
          var indicators = [].slice.call(this._indicatorsElement.querySelectorAll(Selector$2.ACTIVE));
          $(indicators).removeClass(ClassName$2.ACTIVE);
  
          var nextIndicator = this._indicatorsElement.children[this._getItemIndex(element)];
  
          if (nextIndicator) {
            $(nextIndicator).addClass(ClassName$2.ACTIVE);
          }
        }
      };
  
      _proto._slide = function _slide(direction, element) {
        var _this4 = this;
  
        var activeElement = this._element.querySelector(Selector$2.ACTIVE_ITEM);
  
        var activeElementIndex = this._getItemIndex(activeElement);
  
        var nextElement = element || activeElement && this._getItemByDirection(direction, activeElement);
  
        var nextElementIndex = this._getItemIndex(nextElement);
  
        var isCycling = Boolean(this._interval);
        var directionalClassName;
        var orderClassName;
        var eventDirectionName;
  
        if (direction === Direction.NEXT) {
          directionalClassName = ClassName$2.LEFT;
          orderClassName = ClassName$2.NEXT;
          eventDirectionName = Direction.LEFT;
        } else {
          directionalClassName = ClassName$2.RIGHT;
          orderClassName = ClassName$2.PREV;
          eventDirectionName = Direction.RIGHT;
        }
  
        if (nextElement && $(nextElement).hasClass(ClassName$2.ACTIVE)) {
          this._isSliding = false;
          return;
        }
  
        var slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName);
  
        if (slideEvent.isDefaultPrevented()) {
          return;
        }
  
        if (!activeElement || !nextElement) {
          // Some weirdness is happening, so we bail
          return;
        }
  
        this._isSliding = true;
  
        if (isCycling) {
          this.pause();
        }
  
        this._setActiveIndicatorElement(nextElement);
  
        var slidEvent = $.Event(Event$2.SLID, {
          relatedTarget: nextElement,
          direction: eventDirectionName,
          from: activeElementIndex,
          to: nextElementIndex
        });
  
        if ($(this._element).hasClass(ClassName$2.SLIDE)) {
          $(nextElement).addClass(orderClassName);
          Util.reflow(nextElement);
          $(activeElement).addClass(directionalClassName);
          $(nextElement).addClass(directionalClassName);
          var nextElementInterval = parseInt(nextElement.getAttribute('data-interval'), 10);
  
          if (nextElementInterval) {
            this._config.defaultInterval = this._config.defaultInterval || this._config.interval;
            this._config.interval = nextElementInterval;
          } else {
            this._config.interval = this._config.defaultInterval || this._config.interval;
          }
  
          var transitionDuration = Util.getTransitionDurationFromElement(activeElement);
          $(activeElement).one(Util.TRANSITION_END, function () {
            $(nextElement).removeClass(directionalClassName + " " + orderClassName).addClass(ClassName$2.ACTIVE);
            $(activeElement).removeClass(ClassName$2.ACTIVE + " " + orderClassName + " " + directionalClassName);
            _this4._isSliding = false;
            setTimeout(function () {
              return $(_this4._element).trigger(slidEvent);
            }, 0);
          }).emulateTransitionEnd(transitionDuration);
        } else {
          $(activeElement).removeClass(ClassName$2.ACTIVE);
          $(nextElement).addClass(ClassName$2.ACTIVE);
          this._isSliding = false;
          $(this._element).trigger(slidEvent);
        }
  
        if (isCycling) {
          this.cycle();
        }
      } // Static
      ;
  
      Carousel._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $(this).data(DATA_KEY$2);
  
          var _config = _objectSpread({}, Default, $(this).data());
  
          if (typeof config === 'object') {
            _config = _objectSpread({}, _config, config);
          }
  
          var action = typeof config === 'string' ? config : _config.slide;
  
          if (!data) {
            data = new Carousel(this, _config);
            $(this).data(DATA_KEY$2, data);
          }
  
          if (typeof config === 'number') {
            data.to(config);
          } else if (typeof action === 'string') {
            if (typeof data[action] === 'undefined') {
              throw new TypeError("No method named \"" + action + "\"");
            }
  
            data[action]();
          } else if (_config.interval && _config.ride) {
            data.pause();
            data.cycle();
          }
        });
      };
  
      Carousel._dataApiClickHandler = function _dataApiClickHandler(event) {
        var selector = Util.getSelectorFromElement(this);
  
        if (!selector) {
          return;
        }
  
        var target = $(selector)[0];
  
        if (!target || !$(target).hasClass(ClassName$2.CAROUSEL)) {
          return;
        }
  
        var config = _objectSpread({}, $(target).data(), $(this).data());
  
        var slideIndex = this.getAttribute('data-slide-to');
  
        if (slideIndex) {
          config.interval = false;
        }
  
        Carousel._jQueryInterface.call($(target), config);
  
        if (slideIndex) {
          $(target).data(DATA_KEY$2).to(slideIndex);
        }
  
        event.preventDefault();
      };
  
      _createClass(Carousel, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION$2;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default;
        }
      }]);
  
      return Carousel;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */
  
  
    $(document).on(Event$2.CLICK_DATA_API, Selector$2.DATA_SLIDE, Carousel._dataApiClickHandler);
    $(window).on(Event$2.LOAD_DATA_API, function () {
      var carousels = [].slice.call(document.querySelectorAll(Selector$2.DATA_RIDE));
  
      for (var i = 0, len = carousels.length; i < len; i++) {
        var $carousel = $(carousels[i]);
  
        Carousel._jQueryInterface.call($carousel, $carousel.data());
      }
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
    $.fn[NAME$2] = Carousel._jQueryInterface;
    $.fn[NAME$2].Constructor = Carousel;
  
    $.fn[NAME$2].noConflict = function () {
      $.fn[NAME$2] = JQUERY_NO_CONFLICT$2;
      return Carousel._jQueryInterface;
    };
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME$3 = 'collapse';
    var VERSION$3 = '4.3.1';
    var DATA_KEY$3 = 'bs.collapse';
    var EVENT_KEY$3 = "." + DATA_KEY$3;
    var DATA_API_KEY$3 = '.data-api';
    var JQUERY_NO_CONFLICT$3 = $.fn[NAME$3];
    var Default$1 = {
      toggle: true,
      parent: ''
    };
    var DefaultType$1 = {
      toggle: 'boolean',
      parent: '(string|element)'
    };
    var Event$3 = {
      SHOW: "show" + EVENT_KEY$3,
      SHOWN: "shown" + EVENT_KEY$3,
      HIDE: "hide" + EVENT_KEY$3,
      HIDDEN: "hidden" + EVENT_KEY$3,
      CLICK_DATA_API: "click" + EVENT_KEY$3 + DATA_API_KEY$3
    };
    var ClassName$3 = {
      SHOW: 'show',
      COLLAPSE: 'collapse',
      COLLAPSING: 'collapsing',
      COLLAPSED: 'collapsed'
    };
    var Dimension = {
      WIDTH: 'width',
      HEIGHT: 'height'
    };
    var Selector$3 = {
      ACTIVES: '.show, .collapsing',
      DATA_TOGGLE: '[data-toggle="collapse"]'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */
  
    };
  
    var Collapse =
    /*#__PURE__*/
    function () {
      function Collapse(element, config) {
        this._isTransitioning = false;
        this._element = element;
        this._config = this._getConfig(config);
        this._triggerArray = [].slice.call(document.querySelectorAll("[data-toggle=\"collapse\"][href=\"#" + element.id + "\"]," + ("[data-toggle=\"collapse\"][data-target=\"#" + element.id + "\"]")));
        var toggleList = [].slice.call(document.querySelectorAll(Selector$3.DATA_TOGGLE));
  
        for (var i = 0, len = toggleList.length; i < len; i++) {
          var elem = toggleList[i];
          var selector = Util.getSelectorFromElement(elem);
          var filterElement = [].slice.call(document.querySelectorAll(selector)).filter(function (foundElem) {
            return foundElem === element;
          });
  
          if (selector !== null && filterElement.length > 0) {
            this._selector = selector;
  
            this._triggerArray.push(elem);
          }
        }
  
        this._parent = this._config.parent ? this._getParent() : null;
  
        if (!this._config.parent) {
          this._addAriaAndCollapsedClass(this._element, this._triggerArray);
        }
  
        if (this._config.toggle) {
          this.toggle();
        }
      } // Getters
  
  
      var _proto = Collapse.prototype;
  
      // Public
      _proto.toggle = function toggle() {
        if ($(this._element).hasClass(ClassName$3.SHOW)) {
          this.hide();
        } else {
          this.show();
        }
      };
  
      _proto.show = function show() {
        var _this = this;
  
        if (this._isTransitioning || $(this._element).hasClass(ClassName$3.SHOW)) {
          return;
        }
  
        var actives;
        var activesData;
  
        if (this._parent) {
          actives = [].slice.call(this._parent.querySelectorAll(Selector$3.ACTIVES)).filter(function (elem) {
            if (typeof _this._config.parent === 'string') {
              return elem.getAttribute('data-parent') === _this._config.parent;
            }
  
            return elem.classList.contains(ClassName$3.COLLAPSE);
          });
  
          if (actives.length === 0) {
            actives = null;
          }
        }
  
        if (actives) {
          activesData = $(actives).not(this._selector).data(DATA_KEY$3);
  
          if (activesData && activesData._isTransitioning) {
            return;
          }
        }
  
        var startEvent = $.Event(Event$3.SHOW);
        $(this._element).trigger(startEvent);
  
        if (startEvent.isDefaultPrevented()) {
          return;
        }
  
        if (actives) {
          Collapse._jQueryInterface.call($(actives).not(this._selector), 'hide');
  
          if (!activesData) {
            $(actives).data(DATA_KEY$3, null);
          }
        }
  
        var dimension = this._getDimension();
  
        $(this._element).removeClass(ClassName$3.COLLAPSE).addClass(ClassName$3.COLLAPSING);
        this._element.style[dimension] = 0;
  
        if (this._triggerArray.length) {
          $(this._triggerArray).removeClass(ClassName$3.COLLAPSED).attr('aria-expanded', true);
        }
  
        this.setTransitioning(true);
  
        var complete = function complete() {
          $(_this._element).removeClass(ClassName$3.COLLAPSING).addClass(ClassName$3.COLLAPSE).addClass(ClassName$3.SHOW);
          _this._element.style[dimension] = '';
  
          _this.setTransitioning(false);
  
          $(_this._element).trigger(Event$3.SHOWN);
        };
  
        var capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1);
        var scrollSize = "scroll" + capitalizedDimension;
        var transitionDuration = Util.getTransitionDurationFromElement(this._element);
        $(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
        this._element.style[dimension] = this._element[scrollSize] + "px";
      };
  
      _proto.hide = function hide() {
        var _this2 = this;
  
        if (this._isTransitioning || !$(this._element).hasClass(ClassName$3.SHOW)) {
          return;
        }
  
        var startEvent = $.Event(Event$3.HIDE);
        $(this._element).trigger(startEvent);
  
        if (startEvent.isDefaultPrevented()) {
          return;
        }
  
        var dimension = this._getDimension();
  
        this._element.style[dimension] = this._element.getBoundingClientRect()[dimension] + "px";
        Util.reflow(this._element);
        $(this._element).addClass(ClassName$3.COLLAPSING).removeClass(ClassName$3.COLLAPSE).removeClass(ClassName$3.SHOW);
        var triggerArrayLength = this._triggerArray.length;
  
        if (triggerArrayLength > 0) {
          for (var i = 0; i < triggerArrayLength; i++) {
            var trigger = this._triggerArray[i];
            var selector = Util.getSelectorFromElement(trigger);
  
            if (selector !== null) {
              var $elem = $([].slice.call(document.querySelectorAll(selector)));
  
              if (!$elem.hasClass(ClassName$3.SHOW)) {
                $(trigger).addClass(ClassName$3.COLLAPSED).attr('aria-expanded', false);
              }
            }
          }
        }
  
        this.setTransitioning(true);
  
        var complete = function complete() {
          _this2.setTransitioning(false);
  
          $(_this2._element).removeClass(ClassName$3.COLLAPSING).addClass(ClassName$3.COLLAPSE).trigger(Event$3.HIDDEN);
        };
  
        this._element.style[dimension] = '';
        var transitionDuration = Util.getTransitionDurationFromElement(this._element);
        $(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
      };
  
      _proto.setTransitioning = function setTransitioning(isTransitioning) {
        this._isTransitioning = isTransitioning;
      };
  
      _proto.dispose = function dispose() {
        $.removeData(this._element, DATA_KEY$3);
        this._config = null;
        this._parent = null;
        this._element = null;
        this._triggerArray = null;
        this._isTransitioning = null;
      } // Private
      ;
  
      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, Default$1, config);
        config.toggle = Boolean(config.toggle); // Coerce string values
  
        Util.typeCheckConfig(NAME$3, config, DefaultType$1);
        return config;
      };
  
      _proto._getDimension = function _getDimension() {
        var hasWidth = $(this._element).hasClass(Dimension.WIDTH);
        return hasWidth ? Dimension.WIDTH : Dimension.HEIGHT;
      };
  
      _proto._getParent = function _getParent() {
        var _this3 = this;
  
        var parent;
  
        if (Util.isElement(this._config.parent)) {
          parent = this._config.parent; // It's a jQuery object
  
          if (typeof this._config.parent.jquery !== 'undefined') {
            parent = this._config.parent[0];
          }
        } else {
          parent = document.querySelector(this._config.parent);
        }
  
        var selector = "[data-toggle=\"collapse\"][data-parent=\"" + this._config.parent + "\"]";
        var children = [].slice.call(parent.querySelectorAll(selector));
        $(children).each(function (i, element) {
          _this3._addAriaAndCollapsedClass(Collapse._getTargetFromElement(element), [element]);
        });
        return parent;
      };
  
      _proto._addAriaAndCollapsedClass = function _addAriaAndCollapsedClass(element, triggerArray) {
        var isOpen = $(element).hasClass(ClassName$3.SHOW);
  
        if (triggerArray.length) {
          $(triggerArray).toggleClass(ClassName$3.COLLAPSED, !isOpen).attr('aria-expanded', isOpen);
        }
      } // Static
      ;
  
      Collapse._getTargetFromElement = function _getTargetFromElement(element) {
        var selector = Util.getSelectorFromElement(element);
        return selector ? document.querySelector(selector) : null;
      };
  
      Collapse._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var $this = $(this);
          var data = $this.data(DATA_KEY$3);
  
          var _config = _objectSpread({}, Default$1, $this.data(), typeof config === 'object' && config ? config : {});
  
          if (!data && _config.toggle && /show|hide/.test(config)) {
            _config.toggle = false;
          }
  
          if (!data) {
            data = new Collapse(this, _config);
            $this.data(DATA_KEY$3, data);
          }
  
          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }
  
            data[config]();
          }
        });
      };
  
      _createClass(Collapse, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION$3;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default$1;
        }
      }]);
  
      return Collapse;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */
  
  
    $(document).on(Event$3.CLICK_DATA_API, Selector$3.DATA_TOGGLE, function (event) {
      // preventDefault only for <a> elements (which change the URL) not inside the collapsible element
      if (event.currentTarget.tagName === 'A') {
        event.preventDefault();
      }
  
      var $trigger = $(this);
      var selector = Util.getSelectorFromElement(this);
      var selectors = [].slice.call(document.querySelectorAll(selector));
      $(selectors).each(function () {
        var $target = $(this);
        var data = $target.data(DATA_KEY$3);
        var config = data ? 'toggle' : $trigger.data();
  
        Collapse._jQueryInterface.call($target, config);
      });
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
    $.fn[NAME$3] = Collapse._jQueryInterface;
    $.fn[NAME$3].Constructor = Collapse;
  
    $.fn[NAME$3].noConflict = function () {
      $.fn[NAME$3] = JQUERY_NO_CONFLICT$3;
      return Collapse._jQueryInterface;
    };
  
    /**!
     * @fileOverview Kickass library to create and place poppers near their reference elements.
     * @version 1.14.7
     * @license
     * Copyright (c) 2016 Federico Zivolo and contributors
     *
     * Permission is hereby granted, free of charge, to any person obtaining a copy
     * of this software and associated documentation files (the "Software"), to deal
     * in the Software without restriction, including without limitation the rights
     * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     * copies of the Software, and to permit persons to whom the Software is
     * furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice shall be included in all
     * copies or substantial portions of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     * SOFTWARE.
     */
    var isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined';
  
    var longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox'];
    var timeoutDuration = 0;
    for (var i = 0; i < longerTimeoutBrowsers.length; i += 1) {
      if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) {
        timeoutDuration = 1;
        break;
      }
    }
  
    function microtaskDebounce(fn) {
      var called = false;
      return function () {
        if (called) {
          return;
        }
        called = true;
        window.Promise.resolve().then(function () {
          called = false;
          fn();
        });
      };
    }
  
    function taskDebounce(fn) {
      var scheduled = false;
      return function () {
        if (!scheduled) {
          scheduled = true;
          setTimeout(function () {
            scheduled = false;
            fn();
          }, timeoutDuration);
        }
      };
    }
  
    var supportsMicroTasks = isBrowser && window.Promise;
  
    /**
    * Create a debounced version of a method, that's asynchronously deferred
    * but called in the minimum time possible.
    *
    * @method
    * @memberof Popper.Utils
    * @argument {Function} fn
    * @returns {Function}
    */
    var debounce = supportsMicroTasks ? microtaskDebounce : taskDebounce;
  
    /**
     * Check if the given variable is a function
     * @method
     * @memberof Popper.Utils
     * @argument {Any} functionToCheck - variable to check
     * @returns {Boolean} answer to: is a function?
     */
    function isFunction(functionToCheck) {
      var getType = {};
      return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
    }
  
    /**
     * Get CSS computed property of the given element
     * @method
     * @memberof Popper.Utils
     * @argument {Eement} element
     * @argument {String} property
     */
    function getStyleComputedProperty(element, property) {
      if (element.nodeType !== 1) {
        return [];
      }
      // NOTE: 1 DOM access here
      var window = element.ownerDocument.defaultView;
      var css = window.getComputedStyle(element, null);
      return property ? css[property] : css;
    }
  
    /**
     * Returns the parentNode or the host of the element
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @returns {Element} parent
     */
    function getParentNode(element) {
      if (element.nodeName === 'HTML') {
        return element;
      }
      return element.parentNode || element.host;
    }
  
    /**
     * Returns the scrolling parent of the given element
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @returns {Element} scroll parent
     */
    function getScrollParent(element) {
      // Return body, `getScroll` will take care to get the correct `scrollTop` from it
      if (!element) {
        return document.body;
      }
  
      switch (element.nodeName) {
        case 'HTML':
        case 'BODY':
          return element.ownerDocument.body;
        case '#document':
          return element.body;
      }
  
      // Firefox want us to check `-x` and `-y` variations as well
  
      var _getStyleComputedProp = getStyleComputedProperty(element),
          overflow = _getStyleComputedProp.overflow,
          overflowX = _getStyleComputedProp.overflowX,
          overflowY = _getStyleComputedProp.overflowY;
  
      if (/(auto|scroll|overlay)/.test(overflow + overflowY + overflowX)) {
        return element;
      }
  
      return getScrollParent(getParentNode(element));
    }
  
    var isIE11 = isBrowser && !!(window.MSInputMethodContext && document.documentMode);
    var isIE10 = isBrowser && /MSIE 10/.test(navigator.userAgent);
  
    /**
     * Determines if the browser is Internet Explorer
     * @method
     * @memberof Popper.Utils
     * @param {Number} version to check
     * @returns {Boolean} isIE
     */
    function isIE(version) {
      if (version === 11) {
        return isIE11;
      }
      if (version === 10) {
        return isIE10;
      }
      return isIE11 || isIE10;
    }
  
    /**
     * Returns the offset parent of the given element
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @returns {Element} offset parent
     */
    function getOffsetParent(element) {
      if (!element) {
        return document.documentElement;
      }
  
      var noOffsetParent = isIE(10) ? document.body : null;
  
      // NOTE: 1 DOM access here
      var offsetParent = element.offsetParent || null;
      // Skip hidden elements which don't have an offsetParent
      while (offsetParent === noOffsetParent && element.nextElementSibling) {
        offsetParent = (element = element.nextElementSibling).offsetParent;
      }
  
      var nodeName = offsetParent && offsetParent.nodeName;
  
      if (!nodeName || nodeName === 'BODY' || nodeName === 'HTML') {
        return element ? element.ownerDocument.documentElement : document.documentElement;
      }
  
      // .offsetParent will return the closest TH, TD or TABLE in case
      // no offsetParent is present, I hate this job...
      if (['TH', 'TD', 'TABLE'].indexOf(offsetParent.nodeName) !== -1 && getStyleComputedProperty(offsetParent, 'position') === 'static') {
        return getOffsetParent(offsetParent);
      }
  
      return offsetParent;
    }
  
    function isOffsetContainer(element) {
      var nodeName = element.nodeName;
  
      if (nodeName === 'BODY') {
        return false;
      }
      return nodeName === 'HTML' || getOffsetParent(element.firstElementChild) === element;
    }
  
    /**
     * Finds the root node (document, shadowDOM root) of the given element
     * @method
     * @memberof Popper.Utils
     * @argument {Element} node
     * @returns {Element} root node
     */
    function getRoot(node) {
      if (node.parentNode !== null) {
        return getRoot(node.parentNode);
      }
  
      return node;
    }
  
    /**
     * Finds the offset parent common to the two provided nodes
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element1
     * @argument {Element} element2
     * @returns {Element} common offset parent
     */
    function findCommonOffsetParent(element1, element2) {
      // This check is needed to avoid errors in case one of the elements isn't defined for any reason
      if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) {
        return document.documentElement;
      }
  
      // Here we make sure to give as "start" the element that comes first in the DOM
      var order = element1.compareDocumentPosition(element2) & Node.DOCUMENT_POSITION_FOLLOWING;
      var start = order ? element1 : element2;
      var end = order ? element2 : element1;
  
      // Get common ancestor container
      var range = document.createRange();
      range.setStart(start, 0);
      range.setEnd(end, 0);
      var commonAncestorContainer = range.commonAncestorContainer;
  
      // Both nodes are inside #document
  
      if (element1 !== commonAncestorContainer && element2 !== commonAncestorContainer || start.contains(end)) {
        if (isOffsetContainer(commonAncestorContainer)) {
          return commonAncestorContainer;
        }
  
        return getOffsetParent(commonAncestorContainer);
      }
  
      // one of the nodes is inside shadowDOM, find which one
      var element1root = getRoot(element1);
      if (element1root.host) {
        return findCommonOffsetParent(element1root.host, element2);
      } else {
        return findCommonOffsetParent(element1, getRoot(element2).host);
      }
    }
  
    /**
     * Gets the scroll value of the given element in the given side (top and left)
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @argument {String} side `top` or `left`
     * @returns {number} amount of scrolled pixels
     */
    function getScroll(element) {
      var side = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'top';
  
      var upperSide = side === 'top' ? 'scrollTop' : 'scrollLeft';
      var nodeName = element.nodeName;
  
      if (nodeName === 'BODY' || nodeName === 'HTML') {
        var html = element.ownerDocument.documentElement;
        var scrollingElement = element.ownerDocument.scrollingElement || html;
        return scrollingElement[upperSide];
      }
  
      return element[upperSide];
    }
  
    /*
     * Sum or subtract the element scroll values (left and top) from a given rect object
     * @method
     * @memberof Popper.Utils
     * @param {Object} rect - Rect object you want to change
     * @param {HTMLElement} element - The element from the function reads the scroll values
     * @param {Boolean} subtract - set to true if you want to subtract the scroll values
     * @return {Object} rect - The modifier rect object
     */
    function includeScroll(rect, element) {
      var subtract = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  
      var scrollTop = getScroll(element, 'top');
      var scrollLeft = getScroll(element, 'left');
      var modifier = subtract ? -1 : 1;
      rect.top += scrollTop * modifier;
      rect.bottom += scrollTop * modifier;
      rect.left += scrollLeft * modifier;
      rect.right += scrollLeft * modifier;
      return rect;
    }
  
    /*
     * Helper to detect borders of a given element
     * @method
     * @memberof Popper.Utils
     * @param {CSSStyleDeclaration} styles
     * Result of `getStyleComputedProperty` on the given element
     * @param {String} axis - `x` or `y`
     * @return {number} borders - The borders size of the given axis
     */
  
    function getBordersSize(styles, axis) {
      var sideA = axis === 'x' ? 'Left' : 'Top';
      var sideB = sideA === 'Left' ? 'Right' : 'Bottom';
  
      return parseFloat(styles['border' + sideA + 'Width'], 10) + parseFloat(styles['border' + sideB + 'Width'], 10);
    }
  
    function getSize(axis, body, html, computedStyle) {
      return Math.max(body['offset' + axis], body['scroll' + axis], html['client' + axis], html['offset' + axis], html['scroll' + axis], isIE(10) ? parseInt(html['offset' + axis]) + parseInt(computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')]) + parseInt(computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')]) : 0);
    }
  
    function getWindowSizes(document) {
      var body = document.body;
      var html = document.documentElement;
      var computedStyle = isIE(10) && getComputedStyle(html);
  
      return {
        height: getSize('Height', body, html, computedStyle),
        width: getSize('Width', body, html, computedStyle)
      };
    }
  
    var classCallCheck = function (instance, Constructor) {
      if (!(instance instanceof Constructor)) {
        throw new TypeError("Cannot call a class as a function");
      }
    };
  
    var createClass = function () {
      function defineProperties(target, props) {
        for (var i = 0; i < props.length; i++) {
          var descriptor = props[i];
          descriptor.enumerable = descriptor.enumerable || false;
          descriptor.configurable = true;
          if ("value" in descriptor) descriptor.writable = true;
          Object.defineProperty(target, descriptor.key, descriptor);
        }
      }
  
      return function (Constructor, protoProps, staticProps) {
        if (protoProps) defineProperties(Constructor.prototype, protoProps);
        if (staticProps) defineProperties(Constructor, staticProps);
        return Constructor;
      };
    }();
  
  
  
  
  
    var defineProperty = function (obj, key, value) {
      if (key in obj) {
        Object.defineProperty(obj, key, {
          value: value,
          enumerable: true,
          configurable: true,
          writable: true
        });
      } else {
        obj[key] = value;
      }
  
      return obj;
    };
  
    var _extends = Object.assign || function (target) {
      for (var i = 1; i < arguments.length; i++) {
        var source = arguments[i];
  
        for (var key in source) {
          if (Object.prototype.hasOwnProperty.call(source, key)) {
            target[key] = source[key];
          }
        }
      }
  
      return target;
    };
  
    /**
     * Given element offsets, generate an output similar to getBoundingClientRect
     * @method
     * @memberof Popper.Utils
     * @argument {Object} offsets
     * @returns {Object} ClientRect like output
     */
    function getClientRect(offsets) {
      return _extends({}, offsets, {
        right: offsets.left + offsets.width,
        bottom: offsets.top + offsets.height
      });
    }
  
    /**
     * Get bounding client rect of given element
     * @method
     * @memberof Popper.Utils
     * @param {HTMLElement} element
     * @return {Object} client rect
     */
    function getBoundingClientRect(element) {
      var rect = {};
  
      // IE10 10 FIX: Please, don't ask, the element isn't
      // considered in DOM in some circumstances...
      // This isn't reproducible in IE10 compatibility mode of IE11
      try {
        if (isIE(10)) {
          rect = element.getBoundingClientRect();
          var scrollTop = getScroll(element, 'top');
          var scrollLeft = getScroll(element, 'left');
          rect.top += scrollTop;
          rect.left += scrollLeft;
          rect.bottom += scrollTop;
          rect.right += scrollLeft;
        } else {
          rect = element.getBoundingClientRect();
        }
      } catch (e) {}
  
      var result = {
        left: rect.left,
        top: rect.top,
        width: rect.right - rect.left,
        height: rect.bottom - rect.top
      };
  
      // subtract scrollbar size from sizes
      var sizes = element.nodeName === 'HTML' ? getWindowSizes(element.ownerDocument) : {};
      var width = sizes.width || element.clientWidth || result.right - result.left;
      var height = sizes.height || element.clientHeight || result.bottom - result.top;
  
      var horizScrollbar = element.offsetWidth - width;
      var vertScrollbar = element.offsetHeight - height;
  
      // if an hypothetical scrollbar is detected, we must be sure it's not a `border`
      // we make this check conditional for performance reasons
      if (horizScrollbar || vertScrollbar) {
        var styles = getStyleComputedProperty(element);
        horizScrollbar -= getBordersSize(styles, 'x');
        vertScrollbar -= getBordersSize(styles, 'y');
  
        result.width -= horizScrollbar;
        result.height -= vertScrollbar;
      }
  
      return getClientRect(result);
    }
  
    function getOffsetRectRelativeToArbitraryNode(children, parent) {
      var fixedPosition = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  
      var isIE10 = isIE(10);
      var isHTML = parent.nodeName === 'HTML';
      var childrenRect = getBoundingClientRect(children);
      var parentRect = getBoundingClientRect(parent);
      var scrollParent = getScrollParent(children);
  
      var styles = getStyleComputedProperty(parent);
      var borderTopWidth = parseFloat(styles.borderTopWidth, 10);
      var borderLeftWidth = parseFloat(styles.borderLeftWidth, 10);
  
      // In cases where the parent is fixed, we must ignore negative scroll in offset calc
      if (fixedPosition && isHTML) {
        parentRect.top = Math.max(parentRect.top, 0);
        parentRect.left = Math.max(parentRect.left, 0);
      }
      var offsets = getClientRect({
        top: childrenRect.top - parentRect.top - borderTopWidth,
        left: childrenRect.left - parentRect.left - borderLeftWidth,
        width: childrenRect.width,
        height: childrenRect.height
      });
      offsets.marginTop = 0;
      offsets.marginLeft = 0;
  
      // Subtract margins of documentElement in case it's being used as parent
      // we do this only on HTML because it's the only element that behaves
      // differently when margins are applied to it. The margins are included in
      // the box of the documentElement, in the other cases not.
      if (!isIE10 && isHTML) {
        var marginTop = parseFloat(styles.marginTop, 10);
        var marginLeft = parseFloat(styles.marginLeft, 10);
  
        offsets.top -= borderTopWidth - marginTop;
        offsets.bottom -= borderTopWidth - marginTop;
        offsets.left -= borderLeftWidth - marginLeft;
        offsets.right -= borderLeftWidth - marginLeft;
  
        // Attach marginTop and marginLeft because in some circumstances we may need them
        offsets.marginTop = marginTop;
        offsets.marginLeft = marginLeft;
      }
  
      if (isIE10 && !fixedPosition ? parent.contains(scrollParent) : parent === scrollParent && scrollParent.nodeName !== 'BODY') {
        offsets = includeScroll(offsets, parent);
      }
  
      return offsets;
    }
  
    function getViewportOffsetRectRelativeToArtbitraryNode(element) {
      var excludeScroll = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  
      var html = element.ownerDocument.documentElement;
      var relativeOffset = getOffsetRectRelativeToArbitraryNode(element, html);
      var width = Math.max(html.clientWidth, window.innerWidth || 0);
      var height = Math.max(html.clientHeight, window.innerHeight || 0);
  
      var scrollTop = !excludeScroll ? getScroll(html) : 0;
      var scrollLeft = !excludeScroll ? getScroll(html, 'left') : 0;
  
      var offset = {
        top: scrollTop - relativeOffset.top + relativeOffset.marginTop,
        left: scrollLeft - relativeOffset.left + relativeOffset.marginLeft,
        width: width,
        height: height
      };
  
      return getClientRect(offset);
    }
  
    /**
     * Check if the given element is fixed or is inside a fixed parent
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @argument {Element} customContainer
     * @returns {Boolean} answer to "isFixed?"
     */
    function isFixed(element) {
      var nodeName = element.nodeName;
      if (nodeName === 'BODY' || nodeName === 'HTML') {
        return false;
      }
      if (getStyleComputedProperty(element, 'position') === 'fixed') {
        return true;
      }
      var parentNode = getParentNode(element);
      if (!parentNode) {
        return false;
      }
      return isFixed(parentNode);
    }
  
    /**
     * Finds the first parent of an element that has a transformed property defined
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @returns {Element} first transformed parent or documentElement
     */
  
    function getFixedPositionOffsetParent(element) {
      // This check is needed to avoid errors in case one of the elements isn't defined for any reason
      if (!element || !element.parentElement || isIE()) {
        return document.documentElement;
      }
      var el = element.parentElement;
      while (el && getStyleComputedProperty(el, 'transform') === 'none') {
        el = el.parentElement;
      }
      return el || document.documentElement;
    }
  
    /**
     * Computed the boundaries limits and return them
     * @method
     * @memberof Popper.Utils
     * @param {HTMLElement} popper
     * @param {HTMLElement} reference
     * @param {number} padding
     * @param {HTMLElement} boundariesElement - Element used to define the boundaries
     * @param {Boolean} fixedPosition - Is in fixed position mode
     * @returns {Object} Coordinates of the boundaries
     */
    function getBoundaries(popper, reference, padding, boundariesElement) {
      var fixedPosition = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;
  
      // NOTE: 1 DOM access here
  
      var boundaries = { top: 0, left: 0 };
      var offsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, reference);
  
      // Handle viewport case
      if (boundariesElement === 'viewport') {
        boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent, fixedPosition);
      } else {
        // Handle other cases based on DOM element used as boundaries
        var boundariesNode = void 0;
        if (boundariesElement === 'scrollParent') {
          boundariesNode = getScrollParent(getParentNode(reference));
          if (boundariesNode.nodeName === 'BODY') {
            boundariesNode = popper.ownerDocument.documentElement;
          }
        } else if (boundariesElement === 'window') {
          boundariesNode = popper.ownerDocument.documentElement;
        } else {
          boundariesNode = boundariesElement;
        }
  
        var offsets = getOffsetRectRelativeToArbitraryNode(boundariesNode, offsetParent, fixedPosition);
  
        // In case of HTML, we need a different computation
        if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
          var _getWindowSizes = getWindowSizes(popper.ownerDocument),
              height = _getWindowSizes.height,
              width = _getWindowSizes.width;
  
          boundaries.top += offsets.top - offsets.marginTop;
          boundaries.bottom = height + offsets.top;
          boundaries.left += offsets.left - offsets.marginLeft;
          boundaries.right = width + offsets.left;
        } else {
          // for all the other DOM elements, this one is good
          boundaries = offsets;
        }
      }
  
      // Add paddings
      padding = padding || 0;
      var isPaddingNumber = typeof padding === 'number';
      boundaries.left += isPaddingNumber ? padding : padding.left || 0;
      boundaries.top += isPaddingNumber ? padding : padding.top || 0;
      boundaries.right -= isPaddingNumber ? padding : padding.right || 0;
      boundaries.bottom -= isPaddingNumber ? padding : padding.bottom || 0;
  
      return boundaries;
    }
  
    function getArea(_ref) {
      var width = _ref.width,
          height = _ref.height;
  
      return width * height;
    }
  
    /**
     * Utility used to transform the `auto` placement to the placement with more
     * available space.
     * @method
     * @memberof Popper.Utils
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function computeAutoPlacement(placement, refRect, popper, reference, boundariesElement) {
      var padding = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;
  
      if (placement.indexOf('auto') === -1) {
        return placement;
      }
  
      var boundaries = getBoundaries(popper, reference, padding, boundariesElement);
  
      var rects = {
        top: {
          width: boundaries.width,
          height: refRect.top - boundaries.top
        },
        right: {
          width: boundaries.right - refRect.right,
          height: boundaries.height
        },
        bottom: {
          width: boundaries.width,
          height: boundaries.bottom - refRect.bottom
        },
        left: {
          width: refRect.left - boundaries.left,
          height: boundaries.height
        }
      };
  
      var sortedAreas = Object.keys(rects).map(function (key) {
        return _extends({
          key: key
        }, rects[key], {
          area: getArea(rects[key])
        });
      }).sort(function (a, b) {
        return b.area - a.area;
      });
  
      var filteredAreas = sortedAreas.filter(function (_ref2) {
        var width = _ref2.width,
            height = _ref2.height;
        return width >= popper.clientWidth && height >= popper.clientHeight;
      });
  
      var computedPlacement = filteredAreas.length > 0 ? filteredAreas[0].key : sortedAreas[0].key;
  
      var variation = placement.split('-')[1];
  
      return computedPlacement + (variation ? '-' + variation : '');
    }
  
    /**
     * Get offsets to the reference element
     * @method
     * @memberof Popper.Utils
     * @param {Object} state
     * @param {Element} popper - the popper element
     * @param {Element} reference - the reference element (the popper will be relative to this)
     * @param {Element} fixedPosition - is in fixed position mode
     * @returns {Object} An object containing the offsets which will be applied to the popper
     */
    function getReferenceOffsets(state, popper, reference) {
      var fixedPosition = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
  
      var commonOffsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, reference);
      return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent, fixedPosition);
    }
  
    /**
     * Get the outer sizes of the given element (offset size + margins)
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @returns {Object} object containing width and height properties
     */
    function getOuterSizes(element) {
      var window = element.ownerDocument.defaultView;
      var styles = window.getComputedStyle(element);
      var x = parseFloat(styles.marginTop || 0) + parseFloat(styles.marginBottom || 0);
      var y = parseFloat(styles.marginLeft || 0) + parseFloat(styles.marginRight || 0);
      var result = {
        width: element.offsetWidth + y,
        height: element.offsetHeight + x
      };
      return result;
    }
  
    /**
     * Get the opposite placement of the given one
     * @method
     * @memberof Popper.Utils
     * @argument {String} placement
     * @returns {String} flipped placement
     */
    function getOppositePlacement(placement) {
      var hash = { left: 'right', right: 'left', bottom: 'top', top: 'bottom' };
      return placement.replace(/left|right|bottom|top/g, function (matched) {
        return hash[matched];
      });
    }
  
    /**
     * Get offsets to the popper
     * @method
     * @memberof Popper.Utils
     * @param {Object} position - CSS position the Popper will get applied
     * @param {HTMLElement} popper - the popper element
     * @param {Object} referenceOffsets - the reference offsets (the popper will be relative to this)
     * @param {String} placement - one of the valid placement options
     * @returns {Object} popperOffsets - An object containing the offsets which will be applied to the popper
     */
    function getPopperOffsets(popper, referenceOffsets, placement) {
      placement = placement.split('-')[0];
  
      // Get popper node sizes
      var popperRect = getOuterSizes(popper);
  
      // Add position, width and height to our offsets object
      var popperOffsets = {
        width: popperRect.width,
        height: popperRect.height
      };
  
      // depending by the popper placement we have to compute its offsets slightly differently
      var isHoriz = ['right', 'left'].indexOf(placement) !== -1;
      var mainSide = isHoriz ? 'top' : 'left';
      var secondarySide = isHoriz ? 'left' : 'top';
      var measurement = isHoriz ? 'height' : 'width';
      var secondaryMeasurement = !isHoriz ? 'height' : 'width';
  
      popperOffsets[mainSide] = referenceOffsets[mainSide] + referenceOffsets[measurement] / 2 - popperRect[measurement] / 2;
      if (placement === secondarySide) {
        popperOffsets[secondarySide] = referenceOffsets[secondarySide] - popperRect[secondaryMeasurement];
      } else {
        popperOffsets[secondarySide] = referenceOffsets[getOppositePlacement(secondarySide)];
      }
  
      return popperOffsets;
    }
  
    /**
     * Mimics the `find` method of Array
     * @method
     * @memberof Popper.Utils
     * @argument {Array} arr
     * @argument prop
     * @argument value
     * @returns home.html or -1
     */
    function find(arr, check) {
      // use native find if supported
      if (Array.prototype.find) {
        return arr.find(check);
      }
  
      // use `filter` to obtain the same behavior of `find`
      return arr.filter(check)[0];
    }
  
    /**
     * Return the index of the matching object
     * @method
     * @memberof Popper.Utils
     * @argument {Array} arr
     * @argument prop
     * @argument value
     * @returns home.html or -1
     */
    function findIndex(arr, prop, value) {
      // use native findIndex if supported
      if (Array.prototype.findIndex) {
        return arr.findIndex(function (cur) {
          return cur[prop] === value;
        });
      }
  
      // use `find` + `indexOf` if `findIndex` isn't supported
      var match = find(arr, function (obj) {
        return obj[prop] === value;
      });
      return arr.indexOf(match);
    }
  
    /**
     * Loop trough the list of modifiers and run them in order,
     * each of them will then edit the data object.
     * @method
     * @memberof Popper.Utils
     * @param {dataObject} data
     * @param {Array} modifiers
     * @param {String} ends - Optional modifier name used as stopper
     * @returns {dataObject}
     */
    function runModifiers(modifiers, data, ends) {
      var modifiersToRun = ends === undefined ? modifiers : modifiers.slice(0, findIndex(modifiers, 'name', ends));
  
      modifiersToRun.forEach(function (modifier) {
        if (modifier['function']) {
          // eslint-disable-line dot-notation
          console.warn('`modifier.function` is deprecated, use `modifier.fn`!');
        }
        var fn = modifier['function'] || modifier.fn; // eslint-disable-line dot-notation
        if (modifier.enabled && isFunction(fn)) {
          // Add properties to offsets to make them a complete clientRect object
          // we do this before each modifier to make sure the previous one doesn't
          // mess with these values
          data.offsets.popper = getClientRect(data.offsets.popper);
          data.offsets.reference = getClientRect(data.offsets.reference);
  
          data = fn(data, modifier);
        }
      });
  
      return data;
    }
  
    /**
     * Updates the position of the popper, computing the new offsets and applying
     * the new style.<br />
     * Prefer `scheduleUpdate` over `update` because of performance reasons.
     * @method
     * @memberof Popper
     */
    function update() {
      // if popper is destroyed, don't perform any further update
      if (this.state.isDestroyed) {
        return;
      }
  
      var data = {
        instance: this,
        styles: {},
        arrowStyles: {},
        attributes: {},
        flipped: false,
        offsets: {}
      };
  
      // compute reference element offsets
      data.offsets.reference = getReferenceOffsets(this.state, this.popper, this.reference, this.options.positionFixed);
  
      // compute auto placement, store placement inside the data object,
      // modifiers will be able to edit `placement` if needed
      // and refer to originalPlacement to know the original value
      data.placement = computeAutoPlacement(this.options.placement, data.offsets.reference, this.popper, this.reference, this.options.modifiers.flip.boundariesElement, this.options.modifiers.flip.padding);
  
      // store the computed placement inside `originalPlacement`
      data.originalPlacement = data.placement;
  
      data.positionFixed = this.options.positionFixed;
  
      // compute the popper offsets
      data.offsets.popper = getPopperOffsets(this.popper, data.offsets.reference, data.placement);
  
      data.offsets.popper.position = this.options.positionFixed ? 'fixed' : 'absolute';
  
      // run the modifiers
      data = runModifiers(this.modifiers, data);
  
      // the first `update` will call `onCreate` callback
      // the other ones will call `onUpdate` callback
      if (!this.state.isCreated) {
        this.state.isCreated = true;
        this.options.onCreate(data);
      } else {
        this.options.onUpdate(data);
      }
    }
  
    /**
     * Helper used to know if the given modifier is enabled.
     * @method
     * @memberof Popper.Utils
     * @returns {Boolean}
     */
    function isModifierEnabled(modifiers, modifierName) {
      return modifiers.some(function (_ref) {
        var name = _ref.name,
            enabled = _ref.enabled;
        return enabled && name === modifierName;
      });
    }
  
    /**
     * Get the prefixed supported property name
     * @method
     * @memberof Popper.Utils
     * @argument {String} property (camelCase)
     * @returns {String} prefixed property (camelCase or PascalCase, depending on the vendor prefix)
     */
    function getSupportedPropertyName(property) {
      var prefixes = [false, 'ms', 'Webkit', 'Moz', 'O'];
      var upperProp = property.charAt(0).toUpperCase() + property.slice(1);
  
      for (var i = 0; i < prefixes.length; i++) {
        var prefix = prefixes[i];
        var toCheck = prefix ? '' + prefix + upperProp : property;
        if (typeof document.body.style[toCheck] !== 'undefined') {
          return toCheck;
        }
      }
      return null;
    }
  
    /**
     * Destroys the popper.
     * @method
     * @memberof Popper
     */
    function destroy() {
      this.state.isDestroyed = true;
  
      // touch DOM only if `applyStyle` modifier is enabled
      if (isModifierEnabled(this.modifiers, 'applyStyle')) {
        this.popper.removeAttribute('x-placement');
        this.popper.style.position = '';
        this.popper.style.top = '';
        this.popper.style.left = '';
        this.popper.style.right = '';
        this.popper.style.bottom = '';
        this.popper.style.willChange = '';
        this.popper.style[getSupportedPropertyName('transform')] = '';
      }
  
      this.disableEventListeners();
  
      // remove the popper if user explicity asked for the deletion on destroy
      // do not use `remove` because IE11 doesn't support it
      if (this.options.removeOnDestroy) {
        this.popper.parentNode.removeChild(this.popper);
      }
      return this;
    }
  
    /**
     * Get the window associated with the element
     * @argument {Element} element
     * @returns {Window}
     */
    function getWindow(element) {
      var ownerDocument = element.ownerDocument;
      return ownerDocument ? ownerDocument.defaultView : window;
    }
  
    function attachToScrollParents(scrollParent, event, callback, scrollParents) {
      var isBody = scrollParent.nodeName === 'BODY';
      var target = isBody ? scrollParent.ownerDocument.defaultView : scrollParent;
      target.addEventListener(event, callback, { passive: true });
  
      if (!isBody) {
        attachToScrollParents(getScrollParent(target.parentNode), event, callback, scrollParents);
      }
      scrollParents.push(target);
    }
  
    /**
     * Setup needed event listeners used to update the popper position
     * @method
     * @memberof Popper.Utils
     * @private
     */
    function setupEventListeners(reference, options, state, updateBound) {
      // Resize event listener on window
      state.updateBound = updateBound;
      getWindow(reference).addEventListener('resize', state.updateBound, { passive: true });
  
      // Scroll event listener on scroll parents
      var scrollElement = getScrollParent(reference);
      attachToScrollParents(scrollElement, 'scroll', state.updateBound, state.scrollParents);
      state.scrollElement = scrollElement;
      state.eventsEnabled = true;
  
      return state;
    }
  
    /**
     * It will add resize/scroll events and start recalculating
     * position of the popper element when they are triggered.
     * @method
     * @memberof Popper
     */
    function enableEventListeners() {
      if (!this.state.eventsEnabled) {
        this.state = setupEventListeners(this.reference, this.options, this.state, this.scheduleUpdate);
      }
    }
  
    /**
     * Remove event listeners used to update the popper position
     * @method
     * @memberof Popper.Utils
     * @private
     */
    function removeEventListeners(reference, state) {
      // Remove resize event listener on window
      getWindow(reference).removeEventListener('resize', state.updateBound);
  
      // Remove scroll event listener on scroll parents
      state.scrollParents.forEach(function (target) {
        target.removeEventListener('scroll', state.updateBound);
      });
  
      // Reset state
      state.updateBound = null;
      state.scrollParents = [];
      state.scrollElement = null;
      state.eventsEnabled = false;
      return state;
    }
  
    /**
     * It will remove resize/scroll events and won't recalculate popper position
     * when they are triggered. It also won't trigger `onUpdate` callback anymore,
     * unless you call `update` method manually.
     * @method
     * @memberof Popper
     */
    function disableEventListeners() {
      if (this.state.eventsEnabled) {
        cancelAnimationFrame(this.scheduleUpdate);
        this.state = removeEventListeners(this.reference, this.state);
      }
    }
  
    /**
     * Tells if a given input is a number
     * @method
     * @memberof Popper.Utils
     * @param {*} input to check
     * @return {Boolean}
     */
    function isNumeric(n) {
      return n !== '' && !isNaN(parseFloat(n)) && isFinite(n);
    }
  
    /**
     * Set the style to the given popper
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element - Element to apply the style to
     * @argument {Object} styles
     * Object with a list of properties and values which will be applied to the element
     */
    function setStyles(element, styles) {
      Object.keys(styles).forEach(function (prop) {
        var unit = '';
        // add unit if the value is numeric and is one of the following
        if (['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !== -1 && isNumeric(styles[prop])) {
          unit = 'px';
        }
        element.style[prop] = styles[prop] + unit;
      });
    }
  
    /**
     * Set the attributes to the given popper
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element - Element to apply the attributes to
     * @argument {Object} styles
     * Object with a list of properties and values which will be applied to the element
     */
    function setAttributes(element, attributes) {
      Object.keys(attributes).forEach(function (prop) {
        var value = attributes[prop];
        if (value !== false) {
          element.setAttribute(prop, attributes[prop]);
        } else {
          element.removeAttribute(prop);
        }
      });
    }
  
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Object} data.styles - List of style properties - values to apply to popper element
     * @argument {Object} data.attributes - List of attribute properties - values to apply to popper element
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The same data object
     */
    function applyStyle(data) {
      // any property present in `data.styles` will be applied to the popper,
      // in this way we can make the 3rd party modifiers add custom styles to it
      // Be aware, modifiers could override the properties defined in the previous
      // lines of this modifier!
      setStyles(data.instance.popper, data.styles);
  
      // any property present in `data.attributes` will be applied to the popper,
      // they will be set as HTML attributes of the element
      setAttributes(data.instance.popper, data.attributes);
  
      // if arrowElement is defined and arrowStyles has some properties
      if (data.arrowElement && Object.keys(data.arrowStyles).length) {
        setStyles(data.arrowElement, data.arrowStyles);
      }
  
      return data;
    }
  
    /**
     * Set the x-placement attribute before everything else because it could be used
     * to add margins to the popper margins needs to be calculated to get the
     * correct popper offsets.
     * @method
     * @memberof Popper.modifiers
     * @param {HTMLElement} reference - The reference element used to position the popper
     * @param {HTMLElement} popper - The HTML element used as popper
     * @param {Object} options - Popper.js options
     */
    function applyStyleOnLoad(reference, popper, options, modifierOptions, state) {
      // compute reference element offsets
      var referenceOffsets = getReferenceOffsets(state, popper, reference, options.positionFixed);
  
      // compute auto placement, store placement inside the data object,
      // modifiers will be able to edit `placement` if needed
      // and refer to originalPlacement to know the original value
      var placement = computeAutoPlacement(options.placement, referenceOffsets, popper, reference, options.modifiers.flip.boundariesElement, options.modifiers.flip.padding);
  
      popper.setAttribute('x-placement', placement);
  
      // Apply `position` to popper before anything else because
      // without the position applied we can't guarantee correct computations
      setStyles(popper, { position: options.positionFixed ? 'fixed' : 'absolute' });
  
      return options;
    }
  
    /**
     * @function
     * @memberof Popper.Utils
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Boolean} shouldRound - If the offsets should be rounded at all
     * @returns {Object} The popper's position offsets rounded
     *
     * The tale of pixel-perfect positioning. It's still not 100% perfect, but as
     * good as it can be within reason.
     * Discussion here: https://github.com/FezVrasta/popper.js/pull/715
     *
     * Low DPI screens cause a popper to be blurry if not using full pixels (Safari
     * as well on High DPI screens).
     *
     * Firefox prefers no rounding for positioning and does not have blurriness on
     * high DPI screens.
     *
     * Only horizontal placement and left/right values need to be considered.
     */
    function getRoundedOffsets(data, shouldRound) {
      var _data$offsets = data.offsets,
          popper = _data$offsets.popper,
          reference = _data$offsets.reference;
      var round = Math.round,
          floor = Math.floor;
  
      var noRound = function noRound(v) {
        return v;
      };
  
      var referenceWidth = round(reference.width);
      var popperWidth = round(popper.width);
  
      var isVertical = ['left', 'right'].indexOf(data.placement) !== -1;
      var isVariation = data.placement.indexOf('-') !== -1;
      var sameWidthParity = referenceWidth % 2 === popperWidth % 2;
      var bothOddWidth = referenceWidth % 2 === 1 && popperWidth % 2 === 1;
  
      var horizontalToInteger = !shouldRound ? noRound : isVertical || isVariation || sameWidthParity ? round : floor;
      var verticalToInteger = !shouldRound ? noRound : round;
  
      return {
        left: horizontalToInteger(bothOddWidth && !isVariation && shouldRound ? popper.left - 1 : popper.left),
        top: verticalToInteger(popper.top),
        bottom: verticalToInteger(popper.bottom),
        right: horizontalToInteger(popper.right)
      };
    }
  
    var isFirefox = isBrowser && /Firefox/i.test(navigator.userAgent);
  
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function computeStyle(data, options) {
      var x = options.x,
          y = options.y;
      var popper = data.offsets.popper;
  
      // Remove this legacy support in Popper.js v2
  
      var legacyGpuAccelerationOption = find(data.instance.modifiers, function (modifier) {
        return modifier.name === 'applyStyle';
      }).gpuAcceleration;
      if (legacyGpuAccelerationOption !== undefined) {
        console.warn('WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!');
      }
      var gpuAcceleration = legacyGpuAccelerationOption !== undefined ? legacyGpuAccelerationOption : options.gpuAcceleration;
  
      var offsetParent = getOffsetParent(data.instance.popper);
      var offsetParentRect = getBoundingClientRect(offsetParent);
  
      // Styles
      var styles = {
        position: popper.position
      };
  
      var offsets = getRoundedOffsets(data, window.devicePixelRatio < 2 || !isFirefox);
  
      var sideA = x === 'bottom' ? 'top' : 'bottom';
      var sideB = y === 'right' ? 'left' : 'right';
  
      // if gpuAcceleration is set to `true` and transform is supported,
      //  we use `translate3d` to apply the position to the popper we
      // automatically use the supported prefixed version if needed
      var prefixedProperty = getSupportedPropertyName('transform');
  
      // now, let's make a step back and look at this code closely (wtf?)
      // If the content of the popper grows once it's been positioned, it
      // may happen that the popper gets misplaced because of the new content
      // overflowing its reference element
      // To avoid this problem, we provide two options (x and y), which allow
      // the consumer to define the offset origin.
      // If we position a popper on top of a reference element, we can set
      // `x` to `top` to make the popper grow towards its top instead of
      // its bottom.
      var left = void 0,
          top = void 0;
      if (sideA === 'bottom') {
        // when offsetParent is <html> the positioning is relative to the bottom of the screen (excluding the scrollbar)
        // and not the bottom of the html element
        if (offsetParent.nodeName === 'HTML') {
          top = -offsetParent.clientHeight + offsets.bottom;
        } else {
          top = -offsetParentRect.height + offsets.bottom;
        }
      } else {
        top = offsets.top;
      }
      if (sideB === 'right') {
        if (offsetParent.nodeName === 'HTML') {
          left = -offsetParent.clientWidth + offsets.right;
        } else {
          left = -offsetParentRect.width + offsets.right;
        }
      } else {
        left = offsets.left;
      }
      if (gpuAcceleration && prefixedProperty) {
        styles[prefixedProperty] = 'translate3d(' + left + 'px, ' + top + 'px, 0)';
        styles[sideA] = 0;
        styles[sideB] = 0;
        styles.willChange = 'transform';
      } else {
        // othwerise, we use the standard `top`, `left`, `bottom` and `right` properties
        var invertTop = sideA === 'bottom' ? -1 : 1;
        var invertLeft = sideB === 'right' ? -1 : 1;
        styles[sideA] = top * invertTop;
        styles[sideB] = left * invertLeft;
        styles.willChange = sideA + ', ' + sideB;
      }
  
      // Attributes
      var attributes = {
        'x-placement': data.placement
      };
  
      // Update `data` attributes, styles and arrowStyles
      data.attributes = _extends({}, attributes, data.attributes);
      data.styles = _extends({}, styles, data.styles);
      data.arrowStyles = _extends({}, data.offsets.arrow, data.arrowStyles);
  
      return data;
    }
  
    /**
     * Helper used to know if the given modifier depends from another one.<br />
     * It checks if the needed modifier is listed and enabled.
     * @method
     * @memberof Popper.Utils
     * @param {Array} modifiers - list of modifiers
     * @param {String} requestingName - name of requesting modifier
     * @param {String} requestedName - name of requested modifier
     * @returns {Boolean}
     */
    function isModifierRequired(modifiers, requestingName, requestedName) {
      var requesting = find(modifiers, function (_ref) {
        var name = _ref.name;
        return name === requestingName;
      });
  
      var isRequired = !!requesting && modifiers.some(function (modifier) {
        return modifier.name === requestedName && modifier.enabled && modifier.order < requesting.order;
      });
  
      if (!isRequired) {
        var _requesting = '`' + requestingName + '`';
        var requested = '`' + requestedName + '`';
        console.warn(requested + ' modifier is required by ' + _requesting + ' modifier in order to work, be sure to include it before ' + _requesting + '!');
      }
      return isRequired;
    }
  
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function arrow(data, options) {
      var _data$offsets$arrow;
  
      // arrow depends on keepTogether in order to work
      if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {
        return data;
      }
  
      var arrowElement = options.element;
  
      // if arrowElement is a string, suppose it's a CSS selector
      if (typeof arrowElement === 'string') {
        arrowElement = data.instance.popper.querySelector(arrowElement);
  
        // if arrowElement is not found, don't run the modifier
        if (!arrowElement) {
          return data;
        }
      } else {
        // if the arrowElement isn't a query selector we must check that the
        // provided DOM node is child of its popper node
        if (!data.instance.popper.contains(arrowElement)) {
          console.warn('WARNING: `arrow.element` must be child of its popper element!');
          return data;
        }
      }
  
      var placement = data.placement.split('-')[0];
      var _data$offsets = data.offsets,
          popper = _data$offsets.popper,
          reference = _data$offsets.reference;
  
      var isVertical = ['left', 'right'].indexOf(placement) !== -1;
  
      var len = isVertical ? 'height' : 'width';
      var sideCapitalized = isVertical ? 'Top' : 'Left';
      var side = sideCapitalized.toLowerCase();
      var altSide = isVertical ? 'left' : 'top';
      var opSide = isVertical ? 'bottom' : 'right';
      var arrowElementSize = getOuterSizes(arrowElement)[len];
  
      //
      // extends keepTogether behavior making sure the popper and its
      // reference have enough pixels in conjunction
      //
  
      // top/left side
      if (reference[opSide] - arrowElementSize < popper[side]) {
        data.offsets.popper[side] -= popper[side] - (reference[opSide] - arrowElementSize);
      }
      // bottom/right side
      if (reference[side] + arrowElementSize > popper[opSide]) {
        data.offsets.popper[side] += reference[side] + arrowElementSize - popper[opSide];
      }
      data.offsets.popper = getClientRect(data.offsets.popper);
  
      // compute center of the popper
      var center = reference[side] + reference[len] / 2 - arrowElementSize / 2;
  
      // Compute the sideValue using the updated popper offsets
      // take popper margin in account because we don't have this info available
      var css = getStyleComputedProperty(data.instance.popper);
      var popperMarginSide = parseFloat(css['margin' + sideCapitalized], 10);
      var popperBorderSide = parseFloat(css['border' + sideCapitalized + 'Width'], 10);
      var sideValue = center - data.offsets.popper[side] - popperMarginSide - popperBorderSide;
  
      // prevent arrowElement from being placed not contiguously to its popper
      sideValue = Math.max(Math.min(popper[len] - arrowElementSize, sideValue), 0);
  
      data.arrowElement = arrowElement;
      data.offsets.arrow = (_data$offsets$arrow = {}, defineProperty(_data$offsets$arrow, side, Math.round(sideValue)), defineProperty(_data$offsets$arrow, altSide, ''), _data$offsets$arrow);
  
      return data;
    }
  
    /**
     * Get the opposite placement variation of the given one
     * @method
     * @memberof Popper.Utils
     * @argument {String} placement variation
     * @returns {String} flipped placement variation
     */
    function getOppositeVariation(variation) {
      if (variation === 'end') {
        return 'start';
      } else if (variation === 'start') {
        return 'end';
      }
      return variation;
    }
  
    /**
     * List of accepted placements to use as values of the `placement` option.<br />
     * Valid placements are:
     * - `auto`
     * - `top`
     * - `right`
     * - `bottom`
     * - `left`
     *
     * Each placement can have a variation from this list:
     * - `-start`
     * - `-end`
     *
     * Variations are interpreted easily if you think of them as the left to right
     * written languages. Horizontally (`top` and `bottom`), `start` is left and `end`
     * is right.<br />
     * Vertically (`left` and `right`), `start` is top and `end` is bottom.
     *
     * Some valid examples are:
     * - `top-end` (on top of reference, right aligned)
     * - `right-start` (on right of reference, top aligned)
     * - `bottom` (on bottom, centered)
     * - `auto-end` (on the side with more space available, alignment depends by placement)
     *
     * @static
     * @type {Array}
     * @enum {String}
     * @readonly
     * @method placements
     * @memberof Popper
     */
    var placements = ['auto-start', 'auto', 'auto-end', 'top-start', 'top', 'top-end', 'right-start', 'right', 'right-end', 'bottom-end', 'bottom', 'bottom-start', 'left-end', 'left', 'left-start'];
  
    // Get rid of `auto` `auto-start` and `auto-end`
    var validPlacements = placements.slice(3);
  
    /**
     * Given an initial placement, returns all the subsequent placements
     * clockwise (or counter-clockwise).
     *
     * @method
     * @memberof Popper.Utils
     * @argument {String} placement - A valid placement (it accepts variations)
     * @argument {Boolean} counter - Set to true to walk the placements counterclockwise
     * @returns {Array} placements including their variations
     */
    function clockwise(placement) {
      var counter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  
      var index = validPlacements.indexOf(placement);
      var arr = validPlacements.slice(index + 1).concat(validPlacements.slice(0, index));
      return counter ? arr.reverse() : arr;
    }
  
    var BEHAVIORS = {
      FLIP: 'flip',
      CLOCKWISE: 'clockwise',
      COUNTERCLOCKWISE: 'counterclockwise'
    };
  
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function flip(data, options) {
      // if `inner` modifier is enabled, we can't use the `flip` modifier
      if (isModifierEnabled(data.instance.modifiers, 'inner')) {
        return data;
      }
  
      if (data.flipped && data.placement === data.originalPlacement) {
        // seems like flip is trying to loop, probably there's not enough space on any of the flippable sides
        return data;
      }
  
      var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, options.boundariesElement, data.positionFixed);
  
      var placement = data.placement.split('-')[0];
      var placementOpposite = getOppositePlacement(placement);
      var variation = data.placement.split('-')[1] || '';
  
      var flipOrder = [];
  
      switch (options.behavior) {
        case BEHAVIORS.FLIP:
          flipOrder = [placement, placementOpposite];
          break;
        case BEHAVIORS.CLOCKWISE:
          flipOrder = clockwise(placement);
          break;
        case BEHAVIORS.COUNTERCLOCKWISE:
          flipOrder = clockwise(placement, true);
          break;
        default:
          flipOrder = options.behavior;
      }
  
      flipOrder.forEach(function (step, index) {
        if (placement !== step || flipOrder.length === index + 1) {
          return data;
        }
  
        placement = data.placement.split('-')[0];
        placementOpposite = getOppositePlacement(placement);
  
        var popperOffsets = data.offsets.popper;
        var refOffsets = data.offsets.reference;
  
        // using floor because the reference offsets may contain decimals we are not going to consider here
        var floor = Math.floor;
        var overlapsRef = placement === 'left' && floor(popperOffsets.right) > floor(refOffsets.left) || placement === 'right' && floor(popperOffsets.left) < floor(refOffsets.right) || placement === 'top' && floor(popperOffsets.bottom) > floor(refOffsets.top) || placement === 'bottom' && floor(popperOffsets.top) < floor(refOffsets.bottom);
  
        var overflowsLeft = floor(popperOffsets.left) < floor(boundaries.left);
        var overflowsRight = floor(popperOffsets.right) > floor(boundaries.right);
        var overflowsTop = floor(popperOffsets.top) < floor(boundaries.top);
        var overflowsBottom = floor(popperOffsets.bottom) > floor(boundaries.bottom);
  
        var overflowsBoundaries = placement === 'left' && overflowsLeft || placement === 'right' && overflowsRight || placement === 'top' && overflowsTop || placement === 'bottom' && overflowsBottom;
  
        // flip the variation if required
        var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
        var flippedVariation = !!options.flipVariations && (isVertical && variation === 'start' && overflowsLeft || isVertical && variation === 'end' && overflowsRight || !isVertical && variation === 'start' && overflowsTop || !isVertical && variation === 'end' && overflowsBottom);
  
        if (overlapsRef || overflowsBoundaries || flippedVariation) {
          // this boolean to detect any flip loop
          data.flipped = true;
  
          if (overlapsRef || overflowsBoundaries) {
            placement = flipOrder[index + 1];
          }
  
          if (flippedVariation) {
            variation = getOppositeVariation(variation);
          }
  
          data.placement = placement + (variation ? '-' + variation : '');
  
          // this object contains `position`, we want to preserve it along with
          // any additional property we may add in the future
          data.offsets.popper = _extends({}, data.offsets.popper, getPopperOffsets(data.instance.popper, data.offsets.reference, data.placement));
  
          data = runModifiers(data.instance.modifiers, data, 'flip');
        }
      });
      return data;
    }
  
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function keepTogether(data) {
      var _data$offsets = data.offsets,
          popper = _data$offsets.popper,
          reference = _data$offsets.reference;
  
      var placement = data.placement.split('-')[0];
      var floor = Math.floor;
      var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
      var side = isVertical ? 'right' : 'bottom';
      var opSide = isVertical ? 'left' : 'top';
      var measurement = isVertical ? 'width' : 'height';
  
      if (popper[side] < floor(reference[opSide])) {
        data.offsets.popper[opSide] = floor(reference[opSide]) - popper[measurement];
      }
      if (popper[opSide] > floor(reference[side])) {
        data.offsets.popper[opSide] = floor(reference[side]);
      }
  
      return data;
    }
  
    /**
     * Converts a string containing value + unit into a px value number
     * @function
     * @memberof {modifiers~offset}
     * @private
     * @argument {String} str - Value + unit string
     * @argument {String} measurement - `height` or `width`
     * @argument {Object} popperOffsets
     * @argument {Object} referenceOffsets
     * @returns {Number|String}
     * Value in pixels, or original string if no values were extracted
     */
    function toValue(str, measurement, popperOffsets, referenceOffsets) {
      // separate value from unit
      var split = str.match(/((?:\-|\+)?\d*\.?\d*)(.*)/);
      var value = +split[1];
      var unit = split[2];
  
      // If it's not a number it's an operator, I guess
      if (!value) {
        return str;
      }
  
      if (unit.indexOf('%') === 0) {
        var element = void 0;
        switch (unit) {
          case '%p':
            element = popperOffsets;
            break;
          case '%':
          case '%r':
          default:
            element = referenceOffsets;
        }
  
        var rect = getClientRect(element);
        return rect[measurement] / 100 * value;
      } else if (unit === 'vh' || unit === 'vw') {
        // if is a vh or vw, we calculate the size based on the viewport
        var size = void 0;
        if (unit === 'vh') {
          size = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
        } else {
          size = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
        }
        return size / 100 * value;
      } else {
        // if is an explicit pixel unit, we get rid of the unit and keep the value
        // if is an implicit unit, it's px, and we return just the value
        return value;
      }
    }
  
    /**
     * Parse an `offset` string to extrapolate `x` and `y` numeric offsets.
     * @function
     * @memberof {modifiers~offset}
     * @private
     * @argument {String} offset
     * @argument {Object} popperOffsets
     * @argument {Object} referenceOffsets
     * @argument {String} basePlacement
     * @returns {Array} a two cells array with x and y offsets in numbers
     */
    function parseOffset(offset, popperOffsets, referenceOffsets, basePlacement) {
      var offsets = [0, 0];
  
      // Use height if placement is left or right and index is 0 otherwise use width
      // in this way the first offset will use an axis and the second one
      // will use the other one
      var useHeight = ['right', 'left'].indexOf(basePlacement) !== -1;
  
      // Split the offset string to obtain a list of values and operands
      // The regex addresses values with the plus or minus sign in front (+10, -20, etc)
      var fragments = offset.split(/(\+|\-)/).map(function (frag) {
        return frag.trim();
      });
  
      // Detect if the offset string contains a pair of values or a single one
      // they could be separated by comma or space
      var divider = fragments.indexOf(find(fragments, function (frag) {
        return frag.search(/,|\s/) !== -1;
      }));
  
      if (fragments[divider] && fragments[divider].indexOf(',') === -1) {
        console.warn('Offsets separated by white space(s) are deprecated, use a comma (,) instead.');
      }
  
      // If divider is found, we divide the list of values and operands to divide
      // them by ofset X and Y.
      var splitRegex = /\s*,\s*|\s+/;
      var ops = divider !== -1 ? [fragments.slice(0, divider).concat([fragments[divider].split(splitRegex)[0]]), [fragments[divider].split(splitRegex)[1]].concat(fragments.slice(divider + 1))] : [fragments];
  
      // Convert the values with units to absolute pixels to allow our computations
      ops = ops.map(function (op, index) {
        // Most of the units rely on the orientation of the popper
        var measurement = (index === 1 ? !useHeight : useHeight) ? 'height' : 'width';
        var mergeWithPrevious = false;
        return op
        // This aggregates any `+` or `-` sign that aren't considered operators
        // e.g.: 10 + +5 => [10, +, +5]
        .reduce(function (a, b) {
          if (a[a.length - 1] === '' && ['+', '-'].indexOf(b) !== -1) {
            a[a.length - 1] = b;
            mergeWithPrevious = true;
            return a;
          } else if (mergeWithPrevious) {
            a[a.length - 1] += b;
            mergeWithPrevious = false;
            return a;
          } else {
            return a.concat(b);
          }
        }, [])
        // Here we convert the string values into number values (in px)
        .map(function (str) {
          return toValue(str, measurement, popperOffsets, referenceOffsets);
        });
      });
  
      // Loop trough the offsets arrays and execute the operations
      ops.forEach(function (op, index) {
        op.forEach(function (frag, index2) {
          if (isNumeric(frag)) {
            offsets[index] += frag * (op[index2 - 1] === '-' ? -1 : 1);
          }
        });
      });
      return offsets;
    }
  
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @argument {Number|String} options.offset=0
     * The offset value as described in the modifier description
     * @returns {Object} The data object, properly modified
     */
    function offset(data, _ref) {
      var offset = _ref.offset;
      var placement = data.placement,
          _data$offsets = data.offsets,
          popper = _data$offsets.popper,
          reference = _data$offsets.reference;
  
      var basePlacement = placement.split('-')[0];
  
      var offsets = void 0;
      if (isNumeric(+offset)) {
        offsets = [+offset, 0];
      } else {
        offsets = parseOffset(offset, popper, reference, basePlacement);
      }
  
      if (basePlacement === 'left') {
        popper.top += offsets[0];
        popper.left -= offsets[1];
      } else if (basePlacement === 'right') {
        popper.top += offsets[0];
        popper.left += offsets[1];
      } else if (basePlacement === 'top') {
        popper.left += offsets[0];
        popper.top -= offsets[1];
      } else if (basePlacement === 'bottom') {
        popper.left += offsets[0];
        popper.top += offsets[1];
      }
  
      data.popper = popper;
      return data;
    }
  
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function preventOverflow(data, options) {
      var boundariesElement = options.boundariesElement || getOffsetParent(data.instance.popper);
  
      // If offsetParent is the reference element, we really want to
      // go one step up and use the next offsetParent as reference to
      // avoid to make this modifier completely useless and look like broken
      if (data.instance.reference === boundariesElement) {
        boundariesElement = getOffsetParent(boundariesElement);
      }
  
      // NOTE: DOM access here
      // resets the popper's position so that the document size can be calculated excluding
      // the size of the popper element itself
      var transformProp = getSupportedPropertyName('transform');
      var popperStyles = data.instance.popper.style; // assignment to help minification
      var top = popperStyles.top,
          left = popperStyles.left,
          transform = popperStyles[transformProp];
  
      popperStyles.top = '';
      popperStyles.left = '';
      popperStyles[transformProp] = '';
  
      var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, boundariesElement, data.positionFixed);
  
      // NOTE: DOM access here
      // restores the original style properties after the offsets have been computed
      popperStyles.top = top;
      popperStyles.left = left;
      popperStyles[transformProp] = transform;
  
      options.boundaries = boundaries;
  
      var order = options.priority;
      var popper = data.offsets.popper;
  
      var check = {
        primary: function primary(placement) {
          var value = popper[placement];
          if (popper[placement] < boundaries[placement] && !options.escapeWithReference) {
            value = Math.max(popper[placement], boundaries[placement]);
          }
          return defineProperty({}, placement, value);
        },
        secondary: function secondary(placement) {
          var mainSide = placement === 'right' ? 'left' : 'top';
          var value = popper[mainSide];
          if (popper[placement] > boundaries[placement] && !options.escapeWithReference) {
            value = Math.min(popper[mainSide], boundaries[placement] - (placement === 'right' ? popper.width : popper.height));
          }
          return defineProperty({}, mainSide, value);
        }
      };
  
      order.forEach(function (placement) {
        var side = ['left', 'top'].indexOf(placement) !== -1 ? 'primary' : 'secondary';
        popper = _extends({}, popper, check[side](placement));
      });
  
      data.offsets.popper = popper;
  
      return data;
    }
  
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function shift(data) {
      var placement = data.placement;
      var basePlacement = placement.split('-')[0];
      var shiftvariation = placement.split('-')[1];
  
      // if shift shiftvariation is specified, run the modifier
      if (shiftvariation) {
        var _data$offsets = data.offsets,
            reference = _data$offsets.reference,
            popper = _data$offsets.popper;
  
        var isVertical = ['bottom', 'top'].indexOf(basePlacement) !== -1;
        var side = isVertical ? 'left' : 'top';
        var measurement = isVertical ? 'width' : 'height';
  
        var shiftOffsets = {
          start: defineProperty({}, side, reference[side]),
          end: defineProperty({}, side, reference[side] + reference[measurement] - popper[measurement])
        };
  
        data.offsets.popper = _extends({}, popper, shiftOffsets[shiftvariation]);
      }
  
      return data;
    }
  
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function hide(data) {
      if (!isModifierRequired(data.instance.modifiers, 'hide', 'preventOverflow')) {
        return data;
      }
  
      var refRect = data.offsets.reference;
      var bound = find(data.instance.modifiers, function (modifier) {
        return modifier.name === 'preventOverflow';
      }).boundaries;
  
      if (refRect.bottom < bound.top || refRect.left > bound.right || refRect.top > bound.bottom || refRect.right < bound.left) {
        // Avoid unnecessary DOM access if visibility hasn't changed
        if (data.hide === true) {
          return data;
        }
  
        data.hide = true;
        data.attributes['x-out-of-boundaries'] = '';
      } else {
        // Avoid unnecessary DOM access if visibility hasn't changed
        if (data.hide === false) {
          return data;
        }
  
        data.hide = false;
        data.attributes['x-out-of-boundaries'] = false;
      }
  
      return data;
    }
  
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function inner(data) {
      var placement = data.placement;
      var basePlacement = placement.split('-')[0];
      var _data$offsets = data.offsets,
          popper = _data$offsets.popper,
          reference = _data$offsets.reference;
  
      var isHoriz = ['left', 'right'].indexOf(basePlacement) !== -1;
  
      var subtractLength = ['top', 'left'].indexOf(basePlacement) === -1;
  
      popper[isHoriz ? 'left' : 'top'] = reference[basePlacement] - (subtractLength ? popper[isHoriz ? 'width' : 'height'] : 0);
  
      data.placement = getOppositePlacement(placement);
      data.offsets.popper = getClientRect(popper);
  
      return data;
    }
  
    /**
     * Modifier function, each modifier can have a function of this type assigned
     * to its `fn` property.<br />
     * These functions will be called on each update, this means that you must
     * make sure they are performant enough to avoid performance bottlenecks.
     *
     * @function ModifierFn
     * @argument {dataObject} data - The data object generated by `update` method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {dataObject} The data object, properly modified
     */
  
    /**
     * Modifiers are plugins used to alter the behavior of your poppers.<br />
     * Popper.js uses a set of 9 modifiers to provide all the basic functionalities
     * needed by the library.
     *
     * Usually you don't want to override the `order`, `fn` and `onLoad` props.
     * All the other properties are configurations that could be tweaked.
     * @namespace modifiers
     */
    var modifiers = {
      /**
       * Modifier used to shift the popper on the start or end of its reference
       * element.<br />
       * It will read the variation of the `placement` property.<br />
       * It can be one either `-end` or `-start`.
       * @memberof modifiers
       * @inner
       */
      shift: {
        /** @prop {number} order=100 - Index used to define the order of execution */
        order: 100,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: shift
      },
  
      /**
       * The `offset` modifier can shift your popper on both its axis.
       *
       * It accepts the following units:
       * - `px` or unit-less, interpreted as pixels
       * - `%` or `%r`, percentage relative to the length of the reference element
       * - `%p`, percentage relative to the length of the popper element
       * - `vw`, CSS viewport width unit
       * - `vh`, CSS viewport height unit
       *
       * For length is intended the main axis relative to the placement of the popper.<br />
       * This means that if the placement is `top` or `bottom`, the length will be the
       * `width`. In case of `left` or `right`, it will be the `height`.
       *
       * You can provide a single value (as `Number` or `String`), or a pair of values
       * as `String` divided by a comma or one (or more) white spaces.<br />
       * The latter is a deprecated method because it leads to confusion and will be
       * removed in v2.<br />
       * Additionally, it accepts additions and subtractions between different units.
       * Note that multiplications and divisions aren't supported.
       *
       * Valid examples are:
       * ```
       * 10
       * '10%'
       * '10, 10'
       * '10%, 10'
       * '10 + 10%'
       * '10 - 5vh + 3%'
       * '-10px + 5vh, 5px - 6%'
       * ```
       * > **NB**: If you desire to apply offsets to your poppers in a way that may make them overlap
       * > with their reference element, unfortunately, you will have to disable the `flip` modifier.
       * > You can read more on this at this [issue](https://github.com/FezVrasta/popper.js/issues/373).
       *
       * @memberof modifiers
       * @inner
       */
      offset: {
        /** @prop {number} order=200 - Index used to define the order of execution */
        order: 200,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: offset,
        /** @prop {Number|String} offset=0
         * The offset value as described in the modifier description
         */
        offset: 0
      },
  
      /**
       * Modifier used to prevent the popper from being positioned outside the boundary.
       *
       * A scenario exists where the reference itself is not within the boundaries.<br />
       * We can say it has "escaped the boundaries" — or just "escaped".<br />
       * In this case we need to decide whether the popper should either:
       *
       * - detach from the reference and remain "trapped" in the boundaries, or
       * - if it should ignore the boundary and "escape with its reference"
       *
       * When `escapeWithReference` is set to`true` and reference is completely
       * outside its boundaries, the popper will overflow (or completely leave)
       * the boundaries in order to remain attached to the edge of the reference.
       *
       * @memberof modifiers
       * @inner
       */
      preventOverflow: {
        /** @prop {number} order=300 - Index used to define the order of execution */
        order: 300,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: preventOverflow,
        /**
         * @prop {Array} [priority=['left','right','top','bottom']]
         * Popper will try to prevent overflow following these priorities by default,
         * then, it could overflow on the left and on top of the `boundariesElement`
         */
        priority: ['left', 'right', 'top', 'bottom'],
        /**
         * @prop {number} padding=5
         * Amount of pixel used to define a minimum distance between the boundaries
         * and the popper. This makes sure the popper always has a little padding
         * between the edges of its container
         */
        padding: 5,
        /**
         * @prop {String|HTMLElement} boundariesElement='scrollParent'
         * Boundaries used by the modifier. Can be `scrollParent`, `window`,
         * `viewport` or any DOM element.
         */
        boundariesElement: 'scrollParent'
      },
  
      /**
       * Modifier used to make sure the reference and its popper stay near each other
       * without leaving any gap between the two. Especially useful when the arrow is
       * enabled and you want to ensure that it points to its reference element.
       * It cares only about the first axis. You can still have poppers with margin
       * between the popper and its reference element.
       * @memberof modifiers
       * @inner
       */
      keepTogether: {
        /** @prop {number} order=400 - Index used to define the order of execution */
        order: 400,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: keepTogether
      },
  
      /**
       * This modifier is used to move the `arrowElement` of the popper to make
       * sure it is positioned between the reference element and its popper element.
       * It will read the outer size of the `arrowElement` node to detect how many
       * pixels of conjunction are needed.
       *
       * It has no effect if no `arrowElement` is provided.
       * @memberof modifiers
       * @inner
       */
      arrow: {
        /** @prop {number} order=500 - Index used to define the order of execution */
        order: 500,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: arrow,
        /** @prop {String|HTMLElement} element='[x-arrow]' - Selector or node used as arrow */
        element: '[x-arrow]'
      },
  
      /**
       * Modifier used to flip the popper's placement when it starts to overlap its
       * reference element.
       *
       * Requires the `preventOverflow` modifier before it in order to work.
       *
       * **NOTE:** this modifier will interrupt the current update cycle and will
       * restart it if it detects the need to flip the placement.
       * @memberof modifiers
       * @inner
       */
      flip: {
        /** @prop {number} order=600 - Index used to define the order of execution */
        order: 600,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: flip,
        /**
         * @prop {String|Array} behavior='flip'
         * The behavior used to change the popper's placement. It can be one of
         * `flip`, `clockwise`, `counterclockwise` or an array with a list of valid
         * placements (with optional variations)
         */
        behavior: 'flip',
        /**
         * @prop {number} padding=5
         * The popper will flip if it hits the edges of the `boundariesElement`
         */
        padding: 5,
        /**
         * @prop {String|HTMLElement} boundariesElement='viewport'
         * The element which will define the boundaries of the popper position.
         * The popper will never be placed outside of the defined boundaries
         * (except if `keepTogether` is enabled)
         */
        boundariesElement: 'viewport'
      },
  
      /**
       * Modifier used to make the popper flow toward the inner of the reference element.
       * By default, when this modifier is disabled, the popper will be placed outside
       * the reference element.
       * @memberof modifiers
       * @inner
       */
      inner: {
        /** @prop {number} order=700 - Index used to define the order of execution */
        order: 700,
        /** @prop {Boolean} enabled=false - Whether the modifier is enabled or not */
        enabled: false,
        /** @prop {ModifierFn} */
        fn: inner
      },
  
      /**
       * Modifier used to hide the popper when its reference element is outside of the
       * popper boundaries. It will set a `x-out-of-boundaries` attribute which can
       * be used to hide with a CSS selector the popper when its reference is
       * out of boundaries.
       *
       * Requires the `preventOverflow` modifier before it in order to work.
       * @memberof modifiers
       * @inner
       */
      hide: {
        /** @prop {number} order=800 - Index used to define the order of execution */
        order: 800,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: hide
      },
  
      /**
       * Computes the style that will be applied to the popper element to gets
       * properly positioned.
       *
       * Note that this modifier will not touch the DOM, it just prepares the styles
       * so that `applyStyle` modifier can apply it. This separation is useful
       * in case you need to replace `applyStyle` with a custom implementation.
       *
       * This modifier has `850` as `order` value to maintain backward compatibility
       * with previous versions of Popper.js. Expect the modifiers ordering method
       * to change in future major versions of the library.
       *
       * @memberof modifiers
       * @inner
       */
      computeStyle: {
        /** @prop {number} order=850 - Index used to define the order of execution */
        order: 850,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: computeStyle,
        /**
         * @prop {Boolean} gpuAcceleration=true
         * If true, it uses the CSS 3D transformation to position the popper.
         * Otherwise, it will use the `top` and `left` properties
         */
        gpuAcceleration: true,
        /**
         * @prop {string} [x='bottom']
         * Where to anchor the X axis (`bottom` or `top`). AKA X offset origin.
         * Change this if your popper should grow in a direction different from `bottom`
         */
        x: 'bottom',
        /**
         * @prop {string} [x='left']
         * Where to anchor the Y axis (`left` or `right`). AKA Y offset origin.
         * Change this if your popper should grow in a direction different from `right`
         */
        y: 'right'
      },
  
      /**
       * Applies the computed styles to the popper element.
       *
       * All the DOM manipulations are limited to this modifier. This is useful in case
       * you want to integrate Popper.js inside a framework or view library and you
       * want to delegate all the DOM manipulations to it.
       *
       * Note that if you disable this modifier, you must make sure the popper element
       * has its position set to `absolute` before Popper.js can do its work!
       *
       * Just disable this modifier and define your own to achieve the desired effect.
       *
       * @memberof modifiers
       * @inner
       */
      applyStyle: {
        /** @prop {number} order=900 - Index used to define the order of execution */
        order: 900,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: applyStyle,
        /** @prop {Function} */
        onLoad: applyStyleOnLoad,
        /**
         * @deprecated since version 1.10.0, the property moved to `computeStyle` modifier
         * @prop {Boolean} gpuAcceleration=true
         * If true, it uses the CSS 3D transformation to position the popper.
         * Otherwise, it will use the `top` and `left` properties
         */
        gpuAcceleration: undefined
      }
    };
  
    /**
     * The `dataObject` is an object containing all the information used by Popper.js.
     * This object is passed to modifiers and to the `onCreate` and `onUpdate` callbacks.
     * @name dataObject
     * @property {Object} data.instance The Popper.js instance
     * @property {String} data.placement Placement applied to popper
     * @property {String} data.originalPlacement Placement originally defined on init
     * @property {Boolean} data.flipped True if popper has been flipped by flip modifier
     * @property {Boolean} data.hide True if the reference element is out of boundaries, useful to know when to hide the popper
     * @property {HTMLElement} data.arrowElement Node used as arrow by arrow modifier
     * @property {Object} data.styles Any CSS property defined here will be applied to the popper. It expects the JavaScript nomenclature (eg. `marginBottom`)
     * @property {Object} data.arrowStyles Any CSS property defined here will be applied to the popper arrow. It expects the JavaScript nomenclature (eg. `marginBottom`)
     * @property {Object} data.boundaries Offsets of the popper boundaries
     * @property {Object} data.offsets The measurements of popper, reference and arrow elements
     * @property {Object} data.offsets.popper `top`, `left`, `width`, `height` values
     * @property {Object} data.offsets.reference `top`, `left`, `width`, `height` values
     * @property {Object} data.offsets.arrow] `top` and `left` offsets, only one of them will be different from 0
     */
  
    /**
     * Default options provided to Popper.js constructor.<br />
     * These can be overridden using the `options` argument of Popper.js.<br />
     * To override an option, simply pass an object with the same
     * structure of the `options` object, as the 3rd argument. For example:
     * ```
     * new Popper(ref, pop, {
     *   modifiers: {
     *     preventOverflow: { enabled: false }
     *   }
     * })
     * ```
     * @type {Object}
     * @static
     * @memberof Popper
     */
    var Defaults = {
      /**
       * Popper's placement.
       * @prop {Popper.placements} placement='bottom'
       */
      placement: 'bottom',
  
      /**
       * Set this to true if you want popper to position it self in 'fixed' mode
       * @prop {Boolean} positionFixed=false
       */
      positionFixed: false,
  
      /**
       * Whether events (resize, scroll) are initially enabled.
       * @prop {Boolean} eventsEnabled=true
       */
      eventsEnabled: true,
  
      /**
       * Set to true if you want to automatically remove the popper when
       * you call the `destroy` method.
       * @prop {Boolean} removeOnDestroy=false
       */
      removeOnDestroy: false,
  
      /**
       * Callback called when the popper is created.<br />
       * By default, it is set to no-op.<br />
       * Access Popper.js instance with `data.instance`.
       * @prop {onCreate}
       */
      onCreate: function onCreate() {},
  
      /**
       * Callback called when the popper is updated. This callback is not called
       * on the initialization/creation of the popper, but only on subsequent
       * updates.<br />
       * By default, it is set to no-op.<br />
       * Access Popper.js instance with `data.instance`.
       * @prop {onUpdate}
       */
      onUpdate: function onUpdate() {},
  
      /**
       * List of modifiers used to modify the offsets before they are applied to the popper.
       * They provide most of the functionalities of Popper.js.
       * @prop {modifiers}
       */
      modifiers: modifiers
    };
  
    /**
     * @callback onCreate
     * @param {dataObject} data
     */
  
    /**
     * @callback onUpdate
     * @param {dataObject} data
     */
  
    // Utils
    // Methods
    var Popper = function () {
      /**
       * Creates a new Popper.js instance.
       * @class Popper
       * @param {HTMLElement|referenceObject} reference - The reference element used to position the popper
       * @param {HTMLElement} popper - The HTML element used as the popper
       * @param {Object} options - Your custom options to override the ones defined in [Defaults](#defaults)
       * @return {Object} instance - The generated Popper.js instance
       */
      function Popper(reference, popper) {
        var _this = this;
  
        var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
        classCallCheck(this, Popper);
  
        this.scheduleUpdate = function () {
          return requestAnimationFrame(_this.update);
        };
  
        // make update() debounced, so that it only runs at most once-per-tick
        this.update = debounce(this.update.bind(this));
  
        // with {} we create a new object with the options inside it
        this.options = _extends({}, Popper.Defaults, options);
  
        // init state
        this.state = {
          isDestroyed: false,
          isCreated: false,
          scrollParents: []
        };
  
        // get reference and popper elements (allow jQuery wrappers)
        this.reference = reference && reference.jquery ? reference[0] : reference;
        this.popper = popper && popper.jquery ? popper[0] : popper;
  
        // Deep merge modifiers options
        this.options.modifiers = {};
        Object.keys(_extends({}, Popper.Defaults.modifiers, options.modifiers)).forEach(function (name) {
          _this.options.modifiers[name] = _extends({}, Popper.Defaults.modifiers[name] || {}, options.modifiers ? options.modifiers[name] : {});
        });
  
        // Refactoring modifiers' list (Object => Array)
        this.modifiers = Object.keys(this.options.modifiers).map(function (name) {
          return _extends({
            name: name
          }, _this.options.modifiers[name]);
        })
        // sort the modifiers by order
        .sort(function (a, b) {
          return a.order - b.order;
        });
  
        // modifiers have the ability to execute arbitrary code when Popper.js get inited
        // such code is executed in the same order of its modifier
        // they could add new properties to their options configuration
        // BE AWARE: don't add options to `options.modifiers.name` but to `modifierOptions`!
        this.modifiers.forEach(function (modifierOptions) {
          if (modifierOptions.enabled && isFunction(modifierOptions.onLoad)) {
            modifierOptions.onLoad(_this.reference, _this.popper, _this.options, modifierOptions, _this.state);
          }
        });
  
        // fire the first update to position the popper in the right place
        this.update();
  
        var eventsEnabled = this.options.eventsEnabled;
        if (eventsEnabled) {
          // setup event listeners, they will take care of update the position in specific situations
          this.enableEventListeners();
        }
  
        this.state.eventsEnabled = eventsEnabled;
      }
  
      // We can't use class properties because they don't get listed in the
      // class prototype and break stuff like Sinon stubs
  
  
      createClass(Popper, [{
        key: 'update',
        value: function update$$1() {
          return update.call(this);
        }
      }, {
        key: 'destroy',
        value: function destroy$$1() {
          return destroy.call(this);
        }
      }, {
        key: 'enableEventListeners',
        value: function enableEventListeners$$1() {
          return enableEventListeners.call(this);
        }
      }, {
        key: 'disableEventListeners',
        value: function disableEventListeners$$1() {
          return disableEventListeners.call(this);
        }
  
        /**
         * Schedules an update. It will run on the next UI update available.
         * @method scheduleUpdate
         * @memberof Popper
         */
  
  
        /**
         * Collection of utilities useful when writing custom modifiers.
         * Starting from version 1.7, this method is available only if you
         * include `popper-utils.js` before `popper.js`.
         *
         * **DEPRECATION**: This way to access PopperUtils is deprecated
         * and will be removed in v2! Use the PopperUtils module directly instead.
         * Due to the high instability of the methods contained in Utils, we can't
         * guarantee them to follow semver. Use them at your own risk!
         * @static
         * @private
         * @type {Object}
         * @deprecated since version 1.8
         * @member Utils
         * @memberof Popper
         */
  
      }]);
      return Popper;
    }();
  
    /**
     * The `referenceObject` is an object that provides an interface compatible with Popper.js
     * and lets you use it as replacement of a real DOM node.<br />
     * You can use this method to position a popper relatively to a set of coordinates
     * in case you don't have a DOM node to use as reference.
     *
     * ```
     * new Popper(referenceObject, popperNode);
     * ```
     *
     * NB: This feature isn't supported in Internet Explorer 10.
     * @name referenceObject
     * @property {Function} data.getBoundingClientRect
     * A function that returns a set of coordinates compatible with the native `getBoundingClientRect` method.
     * @property {number} data.clientWidth
     * An ES6 getter that will return the width of the virtual reference element.
     * @property {number} data.clientHeight
     * An ES6 getter that will return the height of the virtual reference element.
     */
  
  
    Popper.Utils = (typeof window !== 'undefined' ? window : global).PopperUtils;
    Popper.placements = placements;
    Popper.Defaults = Defaults;
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME$4 = 'dropdown';
    var VERSION$4 = '4.3.1';
    var DATA_KEY$4 = 'bs.dropdown';
    var EVENT_KEY$4 = "." + DATA_KEY$4;
    var DATA_API_KEY$4 = '.data-api';
    var JQUERY_NO_CONFLICT$4 = $.fn[NAME$4];
    var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key
  
    var SPACE_KEYCODE = 32; // KeyboardEvent.which value for space key
  
    var TAB_KEYCODE = 9; // KeyboardEvent.which value for tab key
  
    var ARROW_UP_KEYCODE = 38; // KeyboardEvent.which value for up arrow key
  
    var ARROW_DOWN_KEYCODE = 40; // KeyboardEvent.which value for down arrow key
  
    var RIGHT_MOUSE_BUTTON_WHICH = 3; // MouseEvent.which value for the right button (assuming a right-handed mouse)
  
    var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEYCODE + "|" + ARROW_DOWN_KEYCODE + "|" + ESCAPE_KEYCODE);
    var Event$4 = {
      HIDE: "hide" + EVENT_KEY$4,
      HIDDEN: "hidden" + EVENT_KEY$4,
      SHOW: "show" + EVENT_KEY$4,
      SHOWN: "shown" + EVENT_KEY$4,
      CLICK: "click" + EVENT_KEY$4,
      CLICK_DATA_API: "click" + EVENT_KEY$4 + DATA_API_KEY$4,
      KEYDOWN_DATA_API: "keydown" + EVENT_KEY$4 + DATA_API_KEY$4,
      KEYUP_DATA_API: "keyup" + EVENT_KEY$4 + DATA_API_KEY$4
    };
    var ClassName$4 = {
      DISABLED: 'disabled',
      SHOW: 'show',
      DROPUP: 'dropup',
      DROPRIGHT: 'dropright',
      DROPLEFT: 'dropleft',
      MENURIGHT: 'dropdown-menu-right',
      MENULEFT: 'dropdown-menu-left',
      POSITION_STATIC: 'position-static'
    };
    var Selector$4 = {
      DATA_TOGGLE: '[data-toggle="dropdown"]',
      FORM_CHILD: '.dropdown form',
      MENU: '.dropdown-menu',
      NAVBAR_NAV: '.navbar-nav',
      VISIBLE_ITEMS: '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)'
    };
    var AttachmentMap = {
      TOP: 'top-start',
      TOPEND: 'top-end',
      BOTTOM: 'bottom-start',
      BOTTOMEND: 'bottom-end',
      RIGHT: 'right-start',
      RIGHTEND: 'right-end',
      LEFT: 'left-start',
      LEFTEND: 'left-end'
    };
    var Default$2 = {
      offset: 0,
      flip: true,
      boundary: 'scrollParent',
      reference: 'toggle',
      display: 'dynamic'
    };
    var DefaultType$2 = {
      offset: '(number|string|function)',
      flip: 'boolean',
      boundary: '(string|element)',
      reference: '(string|element)',
      display: 'string'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */
  
    };
  
    var Dropdown =
    /*#__PURE__*/
    function () {
      function Dropdown(element, config) {
        this._element = element;
        this._popper = null;
        this._config = this._getConfig(config);
        this._menu = this._getMenuElement();
        this._inNavbar = this._detectNavbar();
  
        this._addEventListeners();
      } // Getters
  
  
      var _proto = Dropdown.prototype;
  
      // Public
      _proto.toggle = function toggle() {
        if (this._element.disabled || $(this._element).hasClass(ClassName$4.DISABLED)) {
          return;
        }
  
        var parent = Dropdown._getParentFromElement(this._element);
  
        var isActive = $(this._menu).hasClass(ClassName$4.SHOW);
  
        Dropdown._clearMenus();
  
        if (isActive) {
          return;
        }
  
        var relatedTarget = {
          relatedTarget: this._element
        };
        var showEvent = $.Event(Event$4.SHOW, relatedTarget);
        $(parent).trigger(showEvent);
  
        if (showEvent.isDefaultPrevented()) {
          return;
        } // Disable totally Popper.js for Dropdown in Navbar
  
  
        if (!this._inNavbar) {
          /**
           * Check for Popper dependency
           * Popper - https://popper.js.org
           */
          if (typeof Popper === 'undefined') {
            throw new TypeError('Bootstrap\'s dropdowns require Popper.js (https://popper.js.org/)');
          }
  
          var referenceElement = this._element;
  
          if (this._config.reference === 'parent') {
            referenceElement = parent;
          } else if (Util.isElement(this._config.reference)) {
            referenceElement = this._config.reference; // Check if it's jQuery element
  
            if (typeof this._config.reference.jquery !== 'undefined') {
              referenceElement = this._config.reference[0];
            }
          } // If boundary is not `scrollParent`, then set position to `static`
          // to allow the menu to "escape" the scroll parent's boundaries
          // https://github.com/twbs/bootstrap/issues/24251
  
  
          if (this._config.boundary !== 'scrollParent') {
            $(parent).addClass(ClassName$4.POSITION_STATIC);
          }
  
          this._popper = new Popper(referenceElement, this._menu, this._getPopperConfig());
        } // If this is a touch-enabled device we add extra
        // empty mouseover listeners to the body's immediate children;
        // only needed because of broken event delegation on iOS
        // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
  
  
        if ('ontouchstart' in document.documentElement && $(parent).closest(Selector$4.NAVBAR_NAV).length === 0) {
          $(document.body).children().on('mouseover', null, $.noop);
        }
  
        this._element.focus();
  
        this._element.setAttribute('aria-expanded', true);
  
        $(this._menu).toggleClass(ClassName$4.SHOW);
        $(parent).toggleClass(ClassName$4.SHOW).trigger($.Event(Event$4.SHOWN, relatedTarget));
      };
  
      _proto.show = function show() {
        if (this._element.disabled || $(this._element).hasClass(ClassName$4.DISABLED) || $(this._menu).hasClass(ClassName$4.SHOW)) {
          return;
        }
  
        var relatedTarget = {
          relatedTarget: this._element
        };
        var showEvent = $.Event(Event$4.SHOW, relatedTarget);
  
        var parent = Dropdown._getParentFromElement(this._element);
  
        $(parent).trigger(showEvent);
  
        if (showEvent.isDefaultPrevented()) {
          return;
        }
  
        $(this._menu).toggleClass(ClassName$4.SHOW);
        $(parent).toggleClass(ClassName$4.SHOW).trigger($.Event(Event$4.SHOWN, relatedTarget));
      };
  
      _proto.hide = function hide() {
        if (this._element.disabled || $(this._element).hasClass(ClassName$4.DISABLED) || !$(this._menu).hasClass(ClassName$4.SHOW)) {
          return;
        }
  
        var relatedTarget = {
          relatedTarget: this._element
        };
        var hideEvent = $.Event(Event$4.HIDE, relatedTarget);
  
        var parent = Dropdown._getParentFromElement(this._element);
  
        $(parent).trigger(hideEvent);
  
        if (hideEvent.isDefaultPrevented()) {
          return;
        }
  
        $(this._menu).toggleClass(ClassName$4.SHOW);
        $(parent).toggleClass(ClassName$4.SHOW).trigger($.Event(Event$4.HIDDEN, relatedTarget));
      };
  
      _proto.dispose = function dispose() {
        $.removeData(this._element, DATA_KEY$4);
        $(this._element).off(EVENT_KEY$4);
        this._element = null;
        this._menu = null;
  
        if (this._popper !== null) {
          this._popper.destroy();
  
          this._popper = null;
        }
      };
  
      _proto.update = function update() {
        this._inNavbar = this._detectNavbar();
  
        if (this._popper !== null) {
          this._popper.scheduleUpdate();
        }
      } // Private
      ;
  
      _proto._addEventListeners = function _addEventListeners() {
        var _this = this;
  
        $(this._element).on(Event$4.CLICK, function (event) {
          event.preventDefault();
          event.stopPropagation();
  
          _this.toggle();
        });
      };
  
      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, this.constructor.Default, $(this._element).data(), config);
        Util.typeCheckConfig(NAME$4, config, this.constructor.DefaultType);
        return config;
      };
  
      _proto._getMenuElement = function _getMenuElement() {
        if (!this._menu) {
          var parent = Dropdown._getParentFromElement(this._element);
  
          if (parent) {
            this._menu = parent.querySelector(Selector$4.MENU);
          }
        }
  
        return this._menu;
      };
  
      _proto._getPlacement = function _getPlacement() {
        var $parentDropdown = $(this._element.parentNode);
        var placement = AttachmentMap.BOTTOM; // Handle dropup
  
        if ($parentDropdown.hasClass(ClassName$4.DROPUP)) {
          placement = AttachmentMap.TOP;
  
          if ($(this._menu).hasClass(ClassName$4.MENURIGHT)) {
            placement = AttachmentMap.TOPEND;
          }
        } else if ($parentDropdown.hasClass(ClassName$4.DROPRIGHT)) {
          placement = AttachmentMap.RIGHT;
        } else if ($parentDropdown.hasClass(ClassName$4.DROPLEFT)) {
          placement = AttachmentMap.LEFT;
        } else if ($(this._menu).hasClass(ClassName$4.MENURIGHT)) {
          placement = AttachmentMap.BOTTOMEND;
        }
  
        return placement;
      };
  
      _proto._detectNavbar = function _detectNavbar() {
        return $(this._element).closest('.navbar').length > 0;
      };
  
      _proto._getOffset = function _getOffset() {
        var _this2 = this;
  
        var offset = {};
  
        if (typeof this._config.offset === 'function') {
          offset.fn = function (data) {
            data.offsets = _objectSpread({}, data.offsets, _this2._config.offset(data.offsets, _this2._element) || {});
            return data;
          };
        } else {
          offset.offset = this._config.offset;
        }
  
        return offset;
      };
  
      _proto._getPopperConfig = function _getPopperConfig() {
        var popperConfig = {
          placement: this._getPlacement(),
          modifiers: {
            offset: this._getOffset(),
            flip: {
              enabled: this._config.flip
            },
            preventOverflow: {
              boundariesElement: this._config.boundary
            }
          } // Disable Popper.js if we have a static display
  
        };
  
        if (this._config.display === 'static') {
          popperConfig.modifiers.applyStyle = {
            enabled: false
          };
        }
  
        return popperConfig;
      } // Static
      ;
  
      Dropdown._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $(this).data(DATA_KEY$4);
  
          var _config = typeof config === 'object' ? config : null;
  
          if (!data) {
            data = new Dropdown(this, _config);
            $(this).data(DATA_KEY$4, data);
          }
  
          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }
  
            data[config]();
          }
        });
      };
  
      Dropdown._clearMenus = function _clearMenus(event) {
        if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
          return;
        }
  
        var toggles = [].slice.call(document.querySelectorAll(Selector$4.DATA_TOGGLE));
  
        for (var i = 0, len = toggles.length; i < len; i++) {
          var parent = Dropdown._getParentFromElement(toggles[i]);
  
          var context = $(toggles[i]).data(DATA_KEY$4);
          var relatedTarget = {
            relatedTarget: toggles[i]
          };
  
          if (event && event.type === 'click') {
            relatedTarget.clickEvent = event;
          }
  
          if (!context) {
            continue;
          }
  
          var dropdownMenu = context._menu;
  
          if (!$(parent).hasClass(ClassName$4.SHOW)) {
            continue;
          }
  
          if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && $.contains(parent, event.target)) {
            continue;
          }
  
          var hideEvent = $.Event(Event$4.HIDE, relatedTarget);
          $(parent).trigger(hideEvent);
  
          if (hideEvent.isDefaultPrevented()) {
            continue;
          } // If this is a touch-enabled device we remove the extra
          // empty mouseover listeners we added for iOS support
  
  
          if ('ontouchstart' in document.documentElement) {
            $(document.body).children().off('mouseover', null, $.noop);
          }
  
          toggles[i].setAttribute('aria-expanded', 'false');
          $(dropdownMenu).removeClass(ClassName$4.SHOW);
          $(parent).removeClass(ClassName$4.SHOW).trigger($.Event(Event$4.HIDDEN, relatedTarget));
        }
      };
  
      Dropdown._getParentFromElement = function _getParentFromElement(element) {
        var parent;
        var selector = Util.getSelectorFromElement(element);
  
        if (selector) {
          parent = document.querySelector(selector);
        }
  
        return parent || element.parentNode;
      } // eslint-disable-next-line complexity
      ;
  
      Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler(event) {
        // If not input/textarea:
        //  - And not a key in REGEXP_KEYDOWN => not a dropdown command
        // If input/textarea:
        //  - If space key => not a dropdown command
        //  - If key is other than escape
        //    - If key is not up or down => not a dropdown command
        //    - If trigger inside the menu => not a dropdown command
        if (/input|textarea/i.test(event.target.tagName) ? event.which === SPACE_KEYCODE || event.which !== ESCAPE_KEYCODE && (event.which !== ARROW_DOWN_KEYCODE && event.which !== ARROW_UP_KEYCODE || $(event.target).closest(Selector$4.MENU).length) : !REGEXP_KEYDOWN.test(event.which)) {
          return;
        }
  
        event.preventDefault();
        event.stopPropagation();
  
        if (this.disabled || $(this).hasClass(ClassName$4.DISABLED)) {
          return;
        }
  
        var parent = Dropdown._getParentFromElement(this);
  
        var isActive = $(parent).hasClass(ClassName$4.SHOW);
  
        if (!isActive || isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) {
          if (event.which === ESCAPE_KEYCODE) {
            var toggle = parent.querySelector(Selector$4.DATA_TOGGLE);
            $(toggle).trigger('focus');
          }
  
          $(this).trigger('click');
          return;
        }
  
        var items = [].slice.call(parent.querySelectorAll(Selector$4.VISIBLE_ITEMS));
  
        if (items.length === 0) {
          return;
        }
  
        var index = items.indexOf(event.target);
  
        if (event.which === ARROW_UP_KEYCODE && index > 0) {
          // Up
          index--;
        }
  
        if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) {
          // Down
          index++;
        }
  
        if (index < 0) {
          index = 0;
        }
  
        items[index].focus();
      };
  
      _createClass(Dropdown, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION$4;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default$2;
        }
      }, {
        key: "DefaultType",
        get: function get() {
          return DefaultType$2;
        }
      }]);
  
      return Dropdown;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */
  
  
    $(document).on(Event$4.KEYDOWN_DATA_API, Selector$4.DATA_TOGGLE, Dropdown._dataApiKeydownHandler).on(Event$4.KEYDOWN_DATA_API, Selector$4.MENU, Dropdown._dataApiKeydownHandler).on(Event$4.CLICK_DATA_API + " " + Event$4.KEYUP_DATA_API, Dropdown._clearMenus).on(Event$4.CLICK_DATA_API, Selector$4.DATA_TOGGLE, function (event) {
      event.preventDefault();
      event.stopPropagation();
  
      Dropdown._jQueryInterface.call($(this), 'toggle');
    }).on(Event$4.CLICK_DATA_API, Selector$4.FORM_CHILD, function (e) {
      e.stopPropagation();
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
    $.fn[NAME$4] = Dropdown._jQueryInterface;
    $.fn[NAME$4].Constructor = Dropdown;
  
    $.fn[NAME$4].noConflict = function () {
      $.fn[NAME$4] = JQUERY_NO_CONFLICT$4;
      return Dropdown._jQueryInterface;
    };
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME$5 = 'modal';
    var VERSION$5 = '4.3.1';
    var DATA_KEY$5 = 'bs.modal';
    var EVENT_KEY$5 = "." + DATA_KEY$5;
    var DATA_API_KEY$5 = '.data-api';
    var JQUERY_NO_CONFLICT$5 = $.fn[NAME$5];
    var ESCAPE_KEYCODE$1 = 27; // KeyboardEvent.which value for Escape (Esc) key
  
    var Default$3 = {
      backdrop: true,
      keyboard: true,
      focus: true,
      show: true
    };
    var DefaultType$3 = {
      backdrop: '(boolean|string)',
      keyboard: 'boolean',
      focus: 'boolean',
      show: 'boolean'
    };
    var Event$5 = {
      HIDE: "hide" + EVENT_KEY$5,
      HIDDEN: "hidden" + EVENT_KEY$5,
      SHOW: "show" + EVENT_KEY$5,
      SHOWN: "shown" + EVENT_KEY$5,
      FOCUSIN: "focusin" + EVENT_KEY$5,
      RESIZE: "resize" + EVENT_KEY$5,
      CLICK_DISMISS: "click.dismiss" + EVENT_KEY$5,
      KEYDOWN_DISMISS: "keydown.dismiss" + EVENT_KEY$5,
      MOUSEUP_DISMISS: "mouseup.dismiss" + EVENT_KEY$5,
      MOUSEDOWN_DISMISS: "mousedown.dismiss" + EVENT_KEY$5,
      CLICK_DATA_API: "click" + EVENT_KEY$5 + DATA_API_KEY$5
    };
    var ClassName$5 = {
      SCROLLABLE: 'modal-dialog-scrollable',
      SCROLLBAR_MEASURER: 'modal-scrollbar-measure',
      BACKDROP: 'modal-backdrop',
      OPEN: 'modal-open',
      FADE: 'fade',
      SHOW: 'show'
    };
    var Selector$5 = {
      DIALOG: '.modal-dialog',
      MODAL_BODY: '.modal-body',
      DATA_TOGGLE: '[data-toggle="modal"]',
      DATA_DISMISS: '[data-dismiss="modal"]',
      FIXED_CONTENT: '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top',
      STICKY_CONTENT: '.sticky-top'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */
  
    };
  
    var Modal =
    /*#__PURE__*/
    function () {
      function Modal(element, config) {
        this._config = this._getConfig(config);
        this._element = element;
        this._dialog = element.querySelector(Selector$5.DIALOG);
        this._backdrop = null;
        this._isShown = false;
        this._isBodyOverflowing = false;
        this._ignoreBackdropClick = false;
        this._isTransitioning = false;
        this._scrollbarWidth = 0;
      } // Getters
  
  
      var _proto = Modal.prototype;
  
      // Public
      _proto.toggle = function toggle(relatedTarget) {
        return this._isShown ? this.hide() : this.show(relatedTarget);
      };
  
      _proto.show = function show(relatedTarget) {
        var _this = this;
  
        if (this._isShown || this._isTransitioning) {
          return;
        }
  
        if ($(this._element).hasClass(ClassName$5.FADE)) {
          this._isTransitioning = true;
        }
  
        var showEvent = $.Event(Event$5.SHOW, {
          relatedTarget: relatedTarget
        });
        $(this._element).trigger(showEvent);
  
        if (this._isShown || showEvent.isDefaultPrevented()) {
          return;
        }
  
        this._isShown = true;
  
        this._checkScrollbar();
  
        this._setScrollbar();
  
        this._adjustDialog();
  
        this._setEscapeEvent();
  
        this._setResizeEvent();
  
        $(this._element).on(Event$5.CLICK_DISMISS, Selector$5.DATA_DISMISS, function (event) {
          return _this.hide(event);
        });
        $(this._dialog).on(Event$5.MOUSEDOWN_DISMISS, function () {
          $(_this._element).one(Event$5.MOUSEUP_DISMISS, function (event) {
            if ($(event.target).is(_this._element)) {
              _this._ignoreBackdropClick = true;
            }
          });
        });
  
        this._showBackdrop(function () {
          return _this._showElement(relatedTarget);
        });
      };
  
      _proto.hide = function hide(event) {
        var _this2 = this;
  
        if (event) {
          event.preventDefault();
        }
  
        if (!this._isShown || this._isTransitioning) {
          return;
        }
  
        var hideEvent = $.Event(Event$5.HIDE);
        $(this._element).trigger(hideEvent);
  
        if (!this._isShown || hideEvent.isDefaultPrevented()) {
          return;
        }
  
        this._isShown = false;
        var transition = $(this._element).hasClass(ClassName$5.FADE);
  
        if (transition) {
          this._isTransitioning = true;
        }
  
        this._setEscapeEvent();
  
        this._setResizeEvent();
  
        $(document).off(Event$5.FOCUSIN);
        $(this._element).removeClass(ClassName$5.SHOW);
        $(this._element).off(Event$5.CLICK_DISMISS);
        $(this._dialog).off(Event$5.MOUSEDOWN_DISMISS);
  
        if (transition) {
          var transitionDuration = Util.getTransitionDurationFromElement(this._element);
          $(this._element).one(Util.TRANSITION_END, function (event) {
            return _this2._hideModal(event);
          }).emulateTransitionEnd(transitionDuration);
        } else {
          this._hideModal();
        }
      };
  
      _proto.dispose = function dispose() {
        [window, this._element, this._dialog].forEach(function (htmlElement) {
          return $(htmlElement).off(EVENT_KEY$5);
        });
        /**
         * `document` has 2 events `Event.FOCUSIN` and `Event.CLICK_DATA_API`
         * Do not move `document` in `htmlElements` array
         * It will remove `Event.CLICK_DATA_API` event that should remain
         */
  
        $(document).off(Event$5.FOCUSIN);
        $.removeData(this._element, DATA_KEY$5);
        this._config = null;
        this._element = null;
        this._dialog = null;
        this._backdrop = null;
        this._isShown = null;
        this._isBodyOverflowing = null;
        this._ignoreBackdropClick = null;
        this._isTransitioning = null;
        this._scrollbarWidth = null;
      };
  
      _proto.handleUpdate = function handleUpdate() {
        this._adjustDialog();
      } // Private
      ;
  
      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, Default$3, config);
        Util.typeCheckConfig(NAME$5, config, DefaultType$3);
        return config;
      };
  
      _proto._showElement = function _showElement(relatedTarget) {
        var _this3 = this;
  
        var transition = $(this._element).hasClass(ClassName$5.FADE);
  
        if (!this._element.parentNode || this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
          // Don't move modal's DOM position
          document.body.appendChild(this._element);
        }
  
        this._element.style.display = 'block';
  
        this._element.removeAttribute('aria-hidden');
  
        this._element.setAttribute('aria-modal', true);
  
        if ($(this._dialog).hasClass(ClassName$5.SCROLLABLE)) {
          this._dialog.querySelector(Selector$5.MODAL_BODY).scrollTop = 0;
        } else {
          this._element.scrollTop = 0;
        }
  
        if (transition) {
          Util.reflow(this._element);
        }
  
        $(this._element).addClass(ClassName$5.SHOW);
  
        if (this._config.focus) {
          this._enforceFocus();
        }
  
        var shownEvent = $.Event(Event$5.SHOWN, {
          relatedTarget: relatedTarget
        });
  
        var transitionComplete = function transitionComplete() {
          if (_this3._config.focus) {
            _this3._element.focus();
          }
  
          _this3._isTransitioning = false;
          $(_this3._element).trigger(shownEvent);
        };
  
        if (transition) {
          var transitionDuration = Util.getTransitionDurationFromElement(this._dialog);
          $(this._dialog).one(Util.TRANSITION_END, transitionComplete).emulateTransitionEnd(transitionDuration);
        } else {
          transitionComplete();
        }
      };
  
      _proto._enforceFocus = function _enforceFocus() {
        var _this4 = this;
  
        $(document).off(Event$5.FOCUSIN) // Guard against infinite focus loop
        .on(Event$5.FOCUSIN, function (event) {
          if (document !== event.target && _this4._element !== event.target && $(_this4._element).has(event.target).length === 0) {
            _this4._element.focus();
          }
        });
      };
  
      _proto._setEscapeEvent = function _setEscapeEvent() {
        var _this5 = this;
  
        if (this._isShown && this._config.keyboard) {
          $(this._element).on(Event$5.KEYDOWN_DISMISS, function (event) {
            if (event.which === ESCAPE_KEYCODE$1) {
              event.preventDefault();
  
              _this5.hide();
            }
          });
        } else if (!this._isShown) {
          $(this._element).off(Event$5.KEYDOWN_DISMISS);
        }
      };
  
      _proto._setResizeEvent = function _setResizeEvent() {
        var _this6 = this;
  
        if (this._isShown) {
          $(window).on(Event$5.RESIZE, function (event) {
            return _this6.handleUpdate(event);
          });
        } else {
          $(window).off(Event$5.RESIZE);
        }
      };
  
      _proto._hideModal = function _hideModal() {
        var _this7 = this;
  
        this._element.style.display = 'none';
  
        this._element.setAttribute('aria-hidden', true);
  
        this._element.removeAttribute('aria-modal');
  
        this._isTransitioning = false;
  
        this._showBackdrop(function () {
          $(document.body).removeClass(ClassName$5.OPEN);
  
          _this7._resetAdjustments();
  
          _this7._resetScrollbar();
  
          $(_this7._element).trigger(Event$5.HIDDEN);
        });
      };
  
      _proto._removeBackdrop = function _removeBackdrop() {
        if (this._backdrop) {
          $(this._backdrop).remove();
          this._backdrop = null;
        }
      };
  
      _proto._showBackdrop = function _showBackdrop(callback) {
        var _this8 = this;
  
        var animate = $(this._element).hasClass(ClassName$5.FADE) ? ClassName$5.FADE : '';
  
        if (this._isShown && this._config.backdrop) {
          this._backdrop = document.createElement('div');
          this._backdrop.className = ClassName$5.BACKDROP;
  
          if (animate) {
            this._backdrop.classList.add(animate);
          }
  
          $(this._backdrop).appendTo(document.body);
          $(this._element).on(Event$5.CLICK_DISMISS, function (event) {
            if (_this8._ignoreBackdropClick) {
              _this8._ignoreBackdropClick = false;
              return;
            }
  
            if (event.target !== event.currentTarget) {
              return;
            }
  
            if (_this8._config.backdrop === 'static') {
              _this8._element.focus();
            } else {
              _this8.hide();
            }
          });
  
          if (animate) {
            Util.reflow(this._backdrop);
          }
  
          $(this._backdrop).addClass(ClassName$5.SHOW);
  
          if (!callback) {
            return;
          }
  
          if (!animate) {
            callback();
            return;
          }
  
          var backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop);
          $(this._backdrop).one(Util.TRANSITION_END, callback).emulateTransitionEnd(backdropTransitionDuration);
        } else if (!this._isShown && this._backdrop) {
          $(this._backdrop).removeClass(ClassName$5.SHOW);
  
          var callbackRemove = function callbackRemove() {
            _this8._removeBackdrop();
  
            if (callback) {
              callback();
            }
          };
  
          if ($(this._element).hasClass(ClassName$5.FADE)) {
            var _backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop);
  
            $(this._backdrop).one(Util.TRANSITION_END, callbackRemove).emulateTransitionEnd(_backdropTransitionDuration);
          } else {
            callbackRemove();
          }
        } else if (callback) {
          callback();
        }
      } // ----------------------------------------------------------------------
      // the following methods are used to handle overflowing modals
      // todo (fat): these should probably be refactored out of modal.js
      // ----------------------------------------------------------------------
      ;
  
      _proto._adjustDialog = function _adjustDialog() {
        var isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight;
  
        if (!this._isBodyOverflowing && isModalOverflowing) {
          this._element.style.paddingLeft = this._scrollbarWidth + "px";
        }
  
        if (this._isBodyOverflowing && !isModalOverflowing) {
          this._element.style.paddingRight = this._scrollbarWidth + "px";
        }
      };
  
      _proto._resetAdjustments = function _resetAdjustments() {
        this._element.style.paddingLeft = '';
        this._element.style.paddingRight = '';
      };
  
      _proto._checkScrollbar = function _checkScrollbar() {
        var rect = document.body.getBoundingClientRect();
        this._isBodyOverflowing = rect.left + rect.right < window.innerWidth;
        this._scrollbarWidth = this._getScrollbarWidth();
      };
  
      _proto._setScrollbar = function _setScrollbar() {
        var _this9 = this;
  
        if (this._isBodyOverflowing) {
          // Note: DOMNode.style.paddingRight returns the actual value or '' if not set
          //   while $(DOMNode).css('padding-right') returns the calculated value or 0 if not set
          var fixedContent = [].slice.call(document.querySelectorAll(Selector$5.FIXED_CONTENT));
          var stickyContent = [].slice.call(document.querySelectorAll(Selector$5.STICKY_CONTENT)); // Adjust fixed content padding
  
          $(fixedContent).each(function (index, element) {
            var actualPadding = element.style.paddingRight;
            var calculatedPadding = $(element).css('padding-right');
            $(element).data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + _this9._scrollbarWidth + "px");
          }); // Adjust sticky content margin
  
          $(stickyContent).each(function (index, element) {
            var actualMargin = element.style.marginRight;
            var calculatedMargin = $(element).css('margin-right');
            $(element).data('margin-right', actualMargin).css('margin-right', parseFloat(calculatedMargin) - _this9._scrollbarWidth + "px");
          }); // Adjust body padding
  
          var actualPadding = document.body.style.paddingRight;
          var calculatedPadding = $(document.body).css('padding-right');
          $(document.body).data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + this._scrollbarWidth + "px");
        }
  
        $(document.body).addClass(ClassName$5.OPEN);
      };
  
      _proto._resetScrollbar = function _resetScrollbar() {
        // Restore fixed content padding
        var fixedContent = [].slice.call(document.querySelectorAll(Selector$5.FIXED_CONTENT));
        $(fixedContent).each(function (index, element) {
          var padding = $(element).data('padding-right');
          $(element).removeData('padding-right');
          element.style.paddingRight = padding ? padding : '';
        }); // Restore sticky content
  
        var elements = [].slice.call(document.querySelectorAll("" + Selector$5.STICKY_CONTENT));
        $(elements).each(function (index, element) {
          var margin = $(element).data('margin-right');
  
          if (typeof margin !== 'undefined') {
            $(element).css('margin-right', margin).removeData('margin-right');
          }
        }); // Restore body padding
  
        var padding = $(document.body).data('padding-right');
        $(document.body).removeData('padding-right');
        document.body.style.paddingRight = padding ? padding : '';
      };
  
      _proto._getScrollbarWidth = function _getScrollbarWidth() {
        // thx d.walsh
        var scrollDiv = document.createElement('div');
        scrollDiv.className = ClassName$5.SCROLLBAR_MEASURER;
        document.body.appendChild(scrollDiv);
        var scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth;
        document.body.removeChild(scrollDiv);
        return scrollbarWidth;
      } // Static
      ;
  
      Modal._jQueryInterface = function _jQueryInterface(config, relatedTarget) {
        return this.each(function () {
          var data = $(this).data(DATA_KEY$5);
  
          var _config = _objectSpread({}, Default$3, $(this).data(), typeof config === 'object' && config ? config : {});
  
          if (!data) {
            data = new Modal(this, _config);
            $(this).data(DATA_KEY$5, data);
          }
  
          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }
  
            data[config](relatedTarget);
          } else if (_config.show) {
            data.show(relatedTarget);
          }
        });
      };
  
      _createClass(Modal, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION$5;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default$3;
        }
      }]);
  
      return Modal;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */
  
  
    $(document).on(Event$5.CLICK_DATA_API, Selector$5.DATA_TOGGLE, function (event) {
      var _this10 = this;
  
      var target;
      var selector = Util.getSelectorFromElement(this);
  
      if (selector) {
        target = document.querySelector(selector);
      }
  
      var config = $(target).data(DATA_KEY$5) ? 'toggle' : _objectSpread({}, $(target).data(), $(this).data());
  
      if (this.tagName === 'A' || this.tagName === 'AREA') {
        event.preventDefault();
      }
  
      var $target = $(target).one(Event$5.SHOW, function (showEvent) {
        if (showEvent.isDefaultPrevented()) {
          // Only register focus restorer if modal will actually get shown
          return;
        }
  
        $target.one(Event$5.HIDDEN, function () {
          if ($(_this10).is(':visible')) {
            _this10.focus();
          }
        });
      });
  
      Modal._jQueryInterface.call($(target), config, this);
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
    $.fn[NAME$5] = Modal._jQueryInterface;
    $.fn[NAME$5].Constructor = Modal;
  
    $.fn[NAME$5].noConflict = function () {
      $.fn[NAME$5] = JQUERY_NO_CONFLICT$5;
      return Modal._jQueryInterface;
    };
  
    /**
     * --------------------------------------------------------------------------
     * Bootstrap (v4.3.1): tools/sanitizer.js
     * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
     * --------------------------------------------------------------------------
     */
    var uriAttrs = ['background', 'cite', 'href', 'itemtype', 'longdesc', 'poster', 'src', 'xlink:href'];
    var ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i;
    var DefaultWhitelist = {
      // Global attributes allowed on any supplied element below.
      '*': ['class', 'dir', 'id', 'lang', 'role', ARIA_ATTRIBUTE_PATTERN],
      a: ['target', 'href', 'title', 'rel'],
      area: [],
      b: [],
      br: [],
      col: [],
      code: [],
      div: [],
      em: [],
      hr: [],
      h1: [],
      h2: [],
      h3: [],
      h4: [],
      h5: [],
      h6: [],
      i: [],
      img: ['src', 'alt', 'title', 'width', 'height'],
      li: [],
      ol: [],
      p: [],
      pre: [],
      s: [],
      small: [],
      span: [],
      sub: [],
      sup: [],
      strong: [],
      u: [],
      ul: []
      /**
       * A pattern that recognizes a commonly useful subset of URLs that are safe.
       *
       * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
       */
  
    };
    var SAFE_URL_PATTERN = /^(?:(?:https?|mailto|ftp|tel|file):|[^&:/?#]*(?:[/?#]|$))/gi;
    /**
     * A pattern that matches safe data URLs. Only matches image, video and audio types.
     *
     * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
     */
  
    var DATA_URL_PATTERN = /^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[a-z0-9+/]+=*$/i;
  
    function allowedAttribute(attr, allowedAttributeList) {
      var attrName = attr.nodeName.toLowerCase();
  
      if (allowedAttributeList.indexOf(attrName) !== -1) {
        if (uriAttrs.indexOf(attrName) !== -1) {
          return Boolean(attr.nodeValue.match(SAFE_URL_PATTERN) || attr.nodeValue.match(DATA_URL_PATTERN));
        }
  
        return true;
      }
  
      var regExp = allowedAttributeList.filter(function (attrRegex) {
        return attrRegex instanceof RegExp;
      }); // Check if a regular expression validates the attribute.
  
      for (var i = 0, l = regExp.length; i < l; i++) {
        if (attrName.match(regExp[i])) {
          return true;
        }
      }
  
      return false;
    }
  
    function sanitizeHtml(unsafeHtml, whiteList, sanitizeFn) {
      if (unsafeHtml.length === 0) {
        return unsafeHtml;
      }
  
      if (sanitizeFn && typeof sanitizeFn === 'function') {
        return sanitizeFn(unsafeHtml);
      }
  
      var domParser = new window.DOMParser();
      var createdDocument = domParser.parseFromString(unsafeHtml, 'text/html');
      var whitelistKeys = Object.keys(whiteList);
      var elements = [].slice.call(createdDocument.body.querySelectorAll('*'));
  
      var _loop = function _loop(i, len) {
        var el = elements[i];
        var elName = el.nodeName.toLowerCase();
  
        if (whitelistKeys.indexOf(el.nodeName.toLowerCase()) === -1) {
          el.parentNode.removeChild(el);
          return "continue";
        }
  
        var attributeList = [].slice.call(el.attributes);
        var whitelistedAttributes = [].concat(whiteList['*'] || [], whiteList[elName] || []);
        attributeList.forEach(function (attr) {
          if (!allowedAttribute(attr, whitelistedAttributes)) {
            el.removeAttribute(attr.nodeName);
          }
        });
      };
  
      for (var i = 0, len = elements.length; i < len; i++) {
        var _ret = _loop(i, len);
  
        if (_ret === "continue") continue;
      }
  
      return createdDocument.body.innerHTML;
    }
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME$6 = 'tooltip';
    var VERSION$6 = '4.3.1';
    var DATA_KEY$6 = 'bs.tooltip';
    var EVENT_KEY$6 = "." + DATA_KEY$6;
    var JQUERY_NO_CONFLICT$6 = $.fn[NAME$6];
    var CLASS_PREFIX = 'bs-tooltip';
    var BSCLS_PREFIX_REGEX = new RegExp("(^|\\s)" + CLASS_PREFIX + "\\S+", 'g');
    var DISALLOWED_ATTRIBUTES = ['sanitize', 'whiteList', 'sanitizeFn'];
    var DefaultType$4 = {
      animation: 'boolean',
      template: 'string',
      title: '(string|element|function)',
      trigger: 'string',
      delay: '(number|object)',
      html: 'boolean',
      selector: '(string|boolean)',
      placement: '(string|function)',
      offset: '(number|string|function)',
      container: '(string|element|boolean)',
      fallbackPlacement: '(string|array)',
      boundary: '(string|element)',
      sanitize: 'boolean',
      sanitizeFn: '(null|function)',
      whiteList: 'object'
    };
    var AttachmentMap$1 = {
      AUTO: 'auto',
      TOP: 'top',
      RIGHT: 'right',
      BOTTOM: 'bottom',
      LEFT: 'left'
    };
    var Default$4 = {
      animation: true,
      template: '<div class="tooltip" role="tooltip">' + '<div class="arrow"></div>' + '<div class="tooltip-inner"></div></div>',
      trigger: 'hover focus',
      title: '',
      delay: 0,
      html: false,
      selector: false,
      placement: 'top',
      offset: 0,
      container: false,
      fallbackPlacement: 'flip',
      boundary: 'scrollParent',
      sanitize: true,
      sanitizeFn: null,
      whiteList: DefaultWhitelist
    };
    var HoverState = {
      SHOW: 'show',
      OUT: 'out'
    };
    var Event$6 = {
      HIDE: "hide" + EVENT_KEY$6,
      HIDDEN: "hidden" + EVENT_KEY$6,
      SHOW: "show" + EVENT_KEY$6,
      SHOWN: "shown" + EVENT_KEY$6,
      INSERTED: "inserted" + EVENT_KEY$6,
      CLICK: "click" + EVENT_KEY$6,
      FOCUSIN: "focusin" + EVENT_KEY$6,
      FOCUSOUT: "focusout" + EVENT_KEY$6,
      MOUSEENTER: "mouseenter" + EVENT_KEY$6,
      MOUSELEAVE: "mouseleave" + EVENT_KEY$6
    };
    var ClassName$6 = {
      FADE: 'fade',
      SHOW: 'show'
    };
    var Selector$6 = {
      TOOLTIP: '.tooltip',
      TOOLTIP_INNER: '.tooltip-inner',
      ARROW: '.arrow'
    };
    var Trigger = {
      HOVER: 'hover',
      FOCUS: 'focus',
      CLICK: 'click',
      MANUAL: 'manual'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */
  
    };
  
    var Tooltip =
    /*#__PURE__*/
    function () {
      function Tooltip(element, config) {
        /**
         * Check for Popper dependency
         * Popper - https://popper.js.org
         */
        if (typeof Popper === 'undefined') {
          throw new TypeError('Bootstrap\'s tooltips require Popper.js (https://popper.js.org/)');
        } // private
  
  
        this._isEnabled = true;
        this._timeout = 0;
        this._hoverState = '';
        this._activeTrigger = {};
        this._popper = null; // Protected
  
        this.element = element;
        this.config = this._getConfig(config);
        this.tip = null;
  
        this._setListeners();
      } // Getters
  
  
      var _proto = Tooltip.prototype;
  
      // Public
      _proto.enable = function enable() {
        this._isEnabled = true;
      };
  
      _proto.disable = function disable() {
        this._isEnabled = false;
      };
  
      _proto.toggleEnabled = function toggleEnabled() {
        this._isEnabled = !this._isEnabled;
      };
  
      _proto.toggle = function toggle(event) {
        if (!this._isEnabled) {
          return;
        }
  
        if (event) {
          var dataKey = this.constructor.DATA_KEY;
          var context = $(event.currentTarget).data(dataKey);
  
          if (!context) {
            context = new this.constructor(event.currentTarget, this._getDelegateConfig());
            $(event.currentTarget).data(dataKey, context);
          }
  
          context._activeTrigger.click = !context._activeTrigger.click;
  
          if (context._isWithActiveTrigger()) {
            context._enter(null, context);
          } else {
            context._leave(null, context);
          }
        } else {
          if ($(this.getTipElement()).hasClass(ClassName$6.SHOW)) {
            this._leave(null, this);
  
            return;
          }
  
          this._enter(null, this);
        }
      };
  
      _proto.dispose = function dispose() {
        clearTimeout(this._timeout);
        $.removeData(this.element, this.constructor.DATA_KEY);
        $(this.element).off(this.constructor.EVENT_KEY);
        $(this.element).closest('.modal').off('hide.bs.modal');
  
        if (this.tip) {
          $(this.tip).remove();
        }
  
        this._isEnabled = null;
        this._timeout = null;
        this._hoverState = null;
        this._activeTrigger = null;
  
        if (this._popper !== null) {
          this._popper.destroy();
        }
  
        this._popper = null;
        this.element = null;
        this.config = null;
        this.tip = null;
      };
  
      _proto.show = function show() {
        var _this = this;
  
        if ($(this.element).css('display') === 'none') {
          throw new Error('Please use show on visible elements');
        }
  
        var showEvent = $.Event(this.constructor.Event.SHOW);
  
        if (this.isWithContent() && this._isEnabled) {
          $(this.element).trigger(showEvent);
          var shadowRoot = Util.findShadowRoot(this.element);
          var isInTheDom = $.contains(shadowRoot !== null ? shadowRoot : this.element.ownerDocument.documentElement, this.element);
  
          if (showEvent.isDefaultPrevented() || !isInTheDom) {
            return;
          }
  
          var tip = this.getTipElement();
          var tipId = Util.getUID(this.constructor.NAME);
          tip.setAttribute('id', tipId);
          this.element.setAttribute('aria-describedby', tipId);
          this.setContent();
  
          if (this.config.animation) {
            $(tip).addClass(ClassName$6.FADE);
          }
  
          var placement = typeof this.config.placement === 'function' ? this.config.placement.call(this, tip, this.element) : this.config.placement;
  
          var attachment = this._getAttachment(placement);
  
          this.addAttachmentClass(attachment);
  
          var container = this._getContainer();
  
          $(tip).data(this.constructor.DATA_KEY, this);
  
          if (!$.contains(this.element.ownerDocument.documentElement, this.tip)) {
            $(tip).appendTo(container);
          }
  
          $(this.element).trigger(this.constructor.Event.INSERTED);
          this._popper = new Popper(this.element, tip, {
            placement: attachment,
            modifiers: {
              offset: this._getOffset(),
              flip: {
                behavior: this.config.fallbackPlacement
              },
              arrow: {
                element: Selector$6.ARROW
              },
              preventOverflow: {
                boundariesElement: this.config.boundary
              }
            },
            onCreate: function onCreate(data) {
              if (data.originalPlacement !== data.placement) {
                _this._handlePopperPlacementChange(data);
              }
            },
            onUpdate: function onUpdate(data) {
              return _this._handlePopperPlacementChange(data);
            }
          });
          $(tip).addClass(ClassName$6.SHOW); // If this is a touch-enabled device we add extra
          // empty mouseover listeners to the body's immediate children;
          // only needed because of broken event delegation on iOS
          // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
  
          if ('ontouchstart' in document.documentElement) {
            $(document.body).children().on('mouseover', null, $.noop);
          }
  
          var complete = function complete() {
            if (_this.config.animation) {
              _this._fixTransition();
            }
  
            var prevHoverState = _this._hoverState;
            _this._hoverState = null;
            $(_this.element).trigger(_this.constructor.Event.SHOWN);
  
            if (prevHoverState === HoverState.OUT) {
              _this._leave(null, _this);
            }
          };
  
          if ($(this.tip).hasClass(ClassName$6.FADE)) {
            var transitionDuration = Util.getTransitionDurationFromElement(this.tip);
            $(this.tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
          } else {
            complete();
          }
        }
      };
  
      _proto.hide = function hide(callback) {
        var _this2 = this;
  
        var tip = this.getTipElement();
        var hideEvent = $.Event(this.constructor.Event.HIDE);
  
        var complete = function complete() {
          if (_this2._hoverState !== HoverState.SHOW && tip.parentNode) {
            tip.parentNode.removeChild(tip);
          }
  
          _this2._cleanTipClass();
  
          _this2.element.removeAttribute('aria-describedby');
  
          $(_this2.element).trigger(_this2.constructor.Event.HIDDEN);
  
          if (_this2._popper !== null) {
            _this2._popper.destroy();
          }
  
          if (callback) {
            callback();
          }
        };
  
        $(this.element).trigger(hideEvent);
  
        if (hideEvent.isDefaultPrevented()) {
          return;
        }
  
        $(tip).removeClass(ClassName$6.SHOW); // If this is a touch-enabled device we remove the extra
        // empty mouseover listeners we added for iOS support
  
        if ('ontouchstart' in document.documentElement) {
          $(document.body).children().off('mouseover', null, $.noop);
        }
  
        this._activeTrigger[Trigger.CLICK] = false;
        this._activeTrigger[Trigger.FOCUS] = false;
        this._activeTrigger[Trigger.HOVER] = false;
  
        if ($(this.tip).hasClass(ClassName$6.FADE)) {
          var transitionDuration = Util.getTransitionDurationFromElement(tip);
          $(tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
        } else {
          complete();
        }
  
        this._hoverState = '';
      };
  
      _proto.update = function update() {
        if (this._popper !== null) {
          this._popper.scheduleUpdate();
        }
      } // Protected
      ;
  
      _proto.isWithContent = function isWithContent() {
        return Boolean(this.getTitle());
      };
  
      _proto.addAttachmentClass = function addAttachmentClass(attachment) {
        $(this.getTipElement()).addClass(CLASS_PREFIX + "-" + attachment);
      };
  
      _proto.getTipElement = function getTipElement() {
        this.tip = this.tip || $(this.config.template)[0];
        return this.tip;
      };
  
      _proto.setContent = function setContent() {
        var tip = this.getTipElement();
        this.setElementContent($(tip.querySelectorAll(Selector$6.TOOLTIP_INNER)), this.getTitle());
        $(tip).removeClass(ClassName$6.FADE + " " + ClassName$6.SHOW);
      };
  
      _proto.setElementContent = function setElementContent($element, content) {
        if (typeof content === 'object' && (content.nodeType || content.jquery)) {
          // Content is a DOM node or a jQuery
          if (this.config.html) {
            if (!$(content).parent().is($element)) {
              $element.empty().append(content);
            }
          } else {
            $element.text($(content).text());
          }
  
          return;
        }
  
        if (this.config.html) {
          if (this.config.sanitize) {
            content = sanitizeHtml(content, this.config.whiteList, this.config.sanitizeFn);
          }
  
          $element.html(content);
        } else {
          $element.text(content);
        }
      };
  
      _proto.getTitle = function getTitle() {
        var title = this.element.getAttribute('data-original-title');
  
        if (!title) {
          title = typeof this.config.title === 'function' ? this.config.title.call(this.element) : this.config.title;
        }
  
        return title;
      } // Private
      ;
  
      _proto._getOffset = function _getOffset() {
        var _this3 = this;
  
        var offset = {};
  
        if (typeof this.config.offset === 'function') {
          offset.fn = function (data) {
            data.offsets = _objectSpread({}, data.offsets, _this3.config.offset(data.offsets, _this3.element) || {});
            return data;
          };
        } else {
          offset.offset = this.config.offset;
        }
  
        return offset;
      };
  
      _proto._getContainer = function _getContainer() {
        if (this.config.container === false) {
          return document.body;
        }
  
        if (Util.isElement(this.config.container)) {
          return $(this.config.container);
        }
  
        return $(document).find(this.config.container);
      };
  
      _proto._getAttachment = function _getAttachment(placement) {
        return AttachmentMap$1[placement.toUpperCase()];
      };
  
      _proto._setListeners = function _setListeners() {
        var _this4 = this;
  
        var triggers = this.config.trigger.split(' ');
        triggers.forEach(function (trigger) {
          if (trigger === 'click') {
            $(_this4.element).on(_this4.constructor.Event.CLICK, _this4.config.selector, function (event) {
              return _this4.toggle(event);
            });
          } else if (trigger !== Trigger.MANUAL) {
            var eventIn = trigger === Trigger.HOVER ? _this4.constructor.Event.MOUSEENTER : _this4.constructor.Event.FOCUSIN;
            var eventOut = trigger === Trigger.HOVER ? _this4.constructor.Event.MOUSELEAVE : _this4.constructor.Event.FOCUSOUT;
            $(_this4.element).on(eventIn, _this4.config.selector, function (event) {
              return _this4._enter(event);
            }).on(eventOut, _this4.config.selector, function (event) {
              return _this4._leave(event);
            });
          }
        });
        $(this.element).closest('.modal').on('hide.bs.modal', function () {
          if (_this4.element) {
            _this4.hide();
          }
        });
  
        if (this.config.selector) {
          this.config = _objectSpread({}, this.config, {
            trigger: 'manual',
            selector: ''
          });
        } else {
          this._fixTitle();
        }
      };
  
      _proto._fixTitle = function _fixTitle() {
        var titleType = typeof this.element.getAttribute('data-original-title');
  
        if (this.element.getAttribute('title') || titleType !== 'string') {
          this.element.setAttribute('data-original-title', this.element.getAttribute('title') || '');
          this.element.setAttribute('title', '');
        }
      };
  
      _proto._enter = function _enter(event, context) {
        var dataKey = this.constructor.DATA_KEY;
        context = context || $(event.currentTarget).data(dataKey);
  
        if (!context) {
          context = new this.constructor(event.currentTarget, this._getDelegateConfig());
          $(event.currentTarget).data(dataKey, context);
        }
  
        if (event) {
          context._activeTrigger[event.type === 'focusin' ? Trigger.FOCUS : Trigger.HOVER] = true;
        }
  
        if ($(context.getTipElement()).hasClass(ClassName$6.SHOW) || context._hoverState === HoverState.SHOW) {
          context._hoverState = HoverState.SHOW;
          return;
        }
  
        clearTimeout(context._timeout);
        context._hoverState = HoverState.SHOW;
  
        if (!context.config.delay || !context.config.delay.show) {
          context.show();
          return;
        }
  
        context._timeout = setTimeout(function () {
          if (context._hoverState === HoverState.SHOW) {
            context.show();
          }
        }, context.config.delay.show);
      };
  
      _proto._leave = function _leave(event, context) {
        var dataKey = this.constructor.DATA_KEY;
        context = context || $(event.currentTarget).data(dataKey);
  
        if (!context) {
          context = new this.constructor(event.currentTarget, this._getDelegateConfig());
          $(event.currentTarget).data(dataKey, context);
        }
  
        if (event) {
          context._activeTrigger[event.type === 'focusout' ? Trigger.FOCUS : Trigger.HOVER] = false;
        }
  
        if (context._isWithActiveTrigger()) {
          return;
        }
  
        clearTimeout(context._timeout);
        context._hoverState = HoverState.OUT;
  
        if (!context.config.delay || !context.config.delay.hide) {
          context.hide();
          return;
        }
  
        context._timeout = setTimeout(function () {
          if (context._hoverState === HoverState.OUT) {
            context.hide();
          }
        }, context.config.delay.hide);
      };
  
      _proto._isWithActiveTrigger = function _isWithActiveTrigger() {
        for (var trigger in this._activeTrigger) {
          if (this._activeTrigger[trigger]) {
            return true;
          }
        }
  
        return false;
      };
  
      _proto._getConfig = function _getConfig(config) {
        var dataAttributes = $(this.element).data();
        Object.keys(dataAttributes).forEach(function (dataAttr) {
          if (DISALLOWED_ATTRIBUTES.indexOf(dataAttr) !== -1) {
            delete dataAttributes[dataAttr];
          }
        });
        config = _objectSpread({}, this.constructor.Default, dataAttributes, typeof config === 'object' && config ? config : {});
  
        if (typeof config.delay === 'number') {
          config.delay = {
            show: config.delay,
            hide: config.delay
          };
        }
  
        if (typeof config.title === 'number') {
          config.title = config.title.toString();
        }
  
        if (typeof config.content === 'number') {
          config.content = config.content.toString();
        }
  
        Util.typeCheckConfig(NAME$6, config, this.constructor.DefaultType);
  
        if (config.sanitize) {
          config.template = sanitizeHtml(config.template, config.whiteList, config.sanitizeFn);
        }
  
        return config;
      };
  
      _proto._getDelegateConfig = function _getDelegateConfig() {
        var config = {};
  
        if (this.config) {
          for (var key in this.config) {
            if (this.constructor.Default[key] !== this.config[key]) {
              config[key] = this.config[key];
            }
          }
        }
  
        return config;
      };
  
      _proto._cleanTipClass = function _cleanTipClass() {
        var $tip = $(this.getTipElement());
        var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX);
  
        if (tabClass !== null && tabClass.length) {
          $tip.removeClass(tabClass.join(''));
        }
      };
  
      _proto._handlePopperPlacementChange = function _handlePopperPlacementChange(popperData) {
        var popperInstance = popperData.instance;
        this.tip = popperInstance.popper;
  
        this._cleanTipClass();
  
        this.addAttachmentClass(this._getAttachment(popperData.placement));
      };
  
      _proto._fixTransition = function _fixTransition() {
        var tip = this.getTipElement();
        var initConfigAnimation = this.config.animation;
  
        if (tip.getAttribute('x-placement') !== null) {
          return;
        }
  
        $(tip).removeClass(ClassName$6.FADE);
        this.config.animation = false;
        this.hide();
        this.show();
        this.config.animation = initConfigAnimation;
      } // Static
      ;
  
      Tooltip._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $(this).data(DATA_KEY$6);
  
          var _config = typeof config === 'object' && config;
  
          if (!data && /dispose|hide/.test(config)) {
            return;
          }
  
          if (!data) {
            data = new Tooltip(this, _config);
            $(this).data(DATA_KEY$6, data);
          }
  
          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }
  
            data[config]();
          }
        });
      };
  
      _createClass(Tooltip, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION$6;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default$4;
        }
      }, {
        key: "NAME",
        get: function get() {
          return NAME$6;
        }
      }, {
        key: "DATA_KEY",
        get: function get() {
          return DATA_KEY$6;
        }
      }, {
        key: "Event",
        get: function get() {
          return Event$6;
        }
      }, {
        key: "EVENT_KEY",
        get: function get() {
          return EVENT_KEY$6;
        }
      }, {
        key: "DefaultType",
        get: function get() {
          return DefaultType$4;
        }
      }]);
  
      return Tooltip;
    }();
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
  
    $.fn[NAME$6] = Tooltip._jQueryInterface;
    $.fn[NAME$6].Constructor = Tooltip;
  
    $.fn[NAME$6].noConflict = function () {
      $.fn[NAME$6] = JQUERY_NO_CONFLICT$6;
      return Tooltip._jQueryInterface;
    };
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME$7 = 'popover';
    var VERSION$7 = '4.3.1';
    var DATA_KEY$7 = 'bs.popover';
    var EVENT_KEY$7 = "." + DATA_KEY$7;
    var JQUERY_NO_CONFLICT$7 = $.fn[NAME$7];
    var CLASS_PREFIX$1 = 'bs-popover';
    var BSCLS_PREFIX_REGEX$1 = new RegExp("(^|\\s)" + CLASS_PREFIX$1 + "\\S+", 'g');
  
    var Default$5 = _objectSpread({}, Tooltip.Default, {
      placement: 'right',
      trigger: 'click',
      content: '',
      template: '<div class="popover" role="tooltip">' + '<div class="arrow"></div>' + '<h3 class="popover-header"></h3>' + '<div class="popover-body"></div></div>'
    });
  
    var DefaultType$5 = _objectSpread({}, Tooltip.DefaultType, {
      content: '(string|element|function)'
    });
  
    var ClassName$7 = {
      FADE: 'fade',
      SHOW: 'show'
    };
    var Selector$7 = {
      TITLE: '.popover-header',
      CONTENT: '.popover-body'
    };
    var Event$7 = {
      HIDE: "hide" + EVENT_KEY$7,
      HIDDEN: "hidden" + EVENT_KEY$7,
      SHOW: "show" + EVENT_KEY$7,
      SHOWN: "shown" + EVENT_KEY$7,
      INSERTED: "inserted" + EVENT_KEY$7,
      CLICK: "click" + EVENT_KEY$7,
      FOCUSIN: "focusin" + EVENT_KEY$7,
      FOCUSOUT: "focusout" + EVENT_KEY$7,
      MOUSEENTER: "mouseenter" + EVENT_KEY$7,
      MOUSELEAVE: "mouseleave" + EVENT_KEY$7
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */
  
    };
  
    var Popover =
    /*#__PURE__*/
    function (_Tooltip) {
      _inheritsLoose(Popover, _Tooltip);
  
      function Popover() {
        return _Tooltip.apply(this, arguments) || this;
      }
  
      var _proto = Popover.prototype;
  
      // Overrides
      _proto.isWithContent = function isWithContent() {
        return this.getTitle() || this._getContent();
      };
  
      _proto.addAttachmentClass = function addAttachmentClass(attachment) {
        $(this.getTipElement()).addClass(CLASS_PREFIX$1 + "-" + attachment);
      };
  
      _proto.getTipElement = function getTipElement() {
        this.tip = this.tip || $(this.config.template)[0];
        return this.tip;
      };
  
      _proto.setContent = function setContent() {
        var $tip = $(this.getTipElement()); // We use append for html objects to maintain js events
  
        this.setElementContent($tip.find(Selector$7.TITLE), this.getTitle());
  
        var content = this._getContent();
  
        if (typeof content === 'function') {
          content = content.call(this.element);
        }
  
        this.setElementContent($tip.find(Selector$7.CONTENT), content);
        $tip.removeClass(ClassName$7.FADE + " " + ClassName$7.SHOW);
      } // Private
      ;
  
      _proto._getContent = function _getContent() {
        return this.element.getAttribute('data-content') || this.config.content;
      };
  
      _proto._cleanTipClass = function _cleanTipClass() {
        var $tip = $(this.getTipElement());
        var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX$1);
  
        if (tabClass !== null && tabClass.length > 0) {
          $tip.removeClass(tabClass.join(''));
        }
      } // Static
      ;
  
      Popover._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $(this).data(DATA_KEY$7);
  
          var _config = typeof config === 'object' ? config : null;
  
          if (!data && /dispose|hide/.test(config)) {
            return;
          }
  
          if (!data) {
            data = new Popover(this, _config);
            $(this).data(DATA_KEY$7, data);
          }
  
          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }
  
            data[config]();
          }
        });
      };
  
      _createClass(Popover, null, [{
        key: "VERSION",
        // Getters
        get: function get() {
          return VERSION$7;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default$5;
        }
      }, {
        key: "NAME",
        get: function get() {
          return NAME$7;
        }
      }, {
        key: "DATA_KEY",
        get: function get() {
          return DATA_KEY$7;
        }
      }, {
        key: "Event",
        get: function get() {
          return Event$7;
        }
      }, {
        key: "EVENT_KEY",
        get: function get() {
          return EVENT_KEY$7;
        }
      }, {
        key: "DefaultType",
        get: function get() {
          return DefaultType$5;
        }
      }]);
  
      return Popover;
    }(Tooltip);
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
  
    $.fn[NAME$7] = Popover._jQueryInterface;
    $.fn[NAME$7].Constructor = Popover;
  
    $.fn[NAME$7].noConflict = function () {
      $.fn[NAME$7] = JQUERY_NO_CONFLICT$7;
      return Popover._jQueryInterface;
    };
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME$8 = 'scrollspy';
    var VERSION$8 = '4.3.1';
    var DATA_KEY$8 = 'bs.scrollspy';
    var EVENT_KEY$8 = "." + DATA_KEY$8;
    var DATA_API_KEY$6 = '.data-api';
    var JQUERY_NO_CONFLICT$8 = $.fn[NAME$8];
    var Default$6 = {
      offset: 10,
      method: 'auto',
      target: ''
    };
    var DefaultType$6 = {
      offset: 'number',
      method: 'string',
      target: '(string|element)'
    };
    var Event$8 = {
      ACTIVATE: "activate" + EVENT_KEY$8,
      SCROLL: "scroll" + EVENT_KEY$8,
      LOAD_DATA_API: "load" + EVENT_KEY$8 + DATA_API_KEY$6
    };
    var ClassName$8 = {
      DROPDOWN_ITEM: 'dropdown-item',
      DROPDOWN_MENU: 'dropdown-menu',
      ACTIVE: 'active'
    };
    var Selector$8 = {
      DATA_SPY: '[data-spy="scroll"]',
      ACTIVE: '.active',
      NAV_LIST_GROUP: '.nav, .list-group',
      NAV_LINKS: '.nav-link',
      NAV_ITEMS: '.nav-item',
      LIST_ITEMS: '.list-group-item',
      DROPDOWN: '.dropdown',
      DROPDOWN_ITEMS: '.dropdown-item',
      DROPDOWN_TOGGLE: '.dropdown-toggle'
    };
    var OffsetMethod = {
      OFFSET: 'offset',
      POSITION: 'position'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */
  
    };
  
    var ScrollSpy =
    /*#__PURE__*/
    function () {
      function ScrollSpy(element, config) {
        var _this = this;
  
        this._element = element;
        this._scrollElement = element.tagName === 'BODY' ? window : element;
        this._config = this._getConfig(config);
        this._selector = this._config.target + " " + Selector$8.NAV_LINKS + "," + (this._config.target + " " + Selector$8.LIST_ITEMS + ",") + (this._config.target + " " + Selector$8.DROPDOWN_ITEMS);
        this._offsets = [];
        this._targets = [];
        this._activeTarget = null;
        this._scrollHeight = 0;
        $(this._scrollElement).on(Event$8.SCROLL, function (event) {
          return _this._process(event);
        });
        this.refresh();
  
        this._process();
      } // Getters
  
  
      var _proto = ScrollSpy.prototype;
  
      // Public
      _proto.refresh = function refresh() {
        var _this2 = this;
  
        var autoMethod = this._scrollElement === this._scrollElement.window ? OffsetMethod.OFFSET : OffsetMethod.POSITION;
        var offsetMethod = this._config.method === 'auto' ? autoMethod : this._config.method;
        var offsetBase = offsetMethod === OffsetMethod.POSITION ? this._getScrollTop() : 0;
        this._offsets = [];
        this._targets = [];
        this._scrollHeight = this._getScrollHeight();
        var targets = [].slice.call(document.querySelectorAll(this._selector));
        targets.map(function (element) {
          var target;
          var targetSelector = Util.getSelectorFromElement(element);
  
          if (targetSelector) {
            target = document.querySelector(targetSelector);
          }
  
          if (target) {
            var targetBCR = target.getBoundingClientRect();
  
            if (targetBCR.width || targetBCR.height) {
              // TODO (fat): remove sketch reliance on jQuery position/offset
              return [$(target)[offsetMethod]().top + offsetBase, targetSelector];
            }
          }
  
          return null;
        }).filter(function (item) {
          return item;
        }).sort(function (a, b) {
          return a[0] - b[0];
        }).forEach(function (item) {
          _this2._offsets.push(item[0]);
  
          _this2._targets.push(item[1]);
        });
      };
  
      _proto.dispose = function dispose() {
        $.removeData(this._element, DATA_KEY$8);
        $(this._scrollElement).off(EVENT_KEY$8);
        this._element = null;
        this._scrollElement = null;
        this._config = null;
        this._selector = null;
        this._offsets = null;
        this._targets = null;
        this._activeTarget = null;
        this._scrollHeight = null;
      } // Private
      ;
  
      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, Default$6, typeof config === 'object' && config ? config : {});
  
        if (typeof config.target !== 'string') {
          var id = $(config.target).attr('id');
  
          if (!id) {
            id = Util.getUID(NAME$8);
            $(config.target).attr('id', id);
          }
  
          config.target = "#" + id;
        }
  
        Util.typeCheckConfig(NAME$8, config, DefaultType$6);
        return config;
      };
  
      _proto._getScrollTop = function _getScrollTop() {
        return this._scrollElement === window ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop;
      };
  
      _proto._getScrollHeight = function _getScrollHeight() {
        return this._scrollElement.scrollHeight || Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
      };
  
      _proto._getOffsetHeight = function _getOffsetHeight() {
        return this._scrollElement === window ? window.innerHeight : this._scrollElement.getBoundingClientRect().height;
      };
  
      _proto._process = function _process() {
        var scrollTop = this._getScrollTop() + this._config.offset;
  
        var scrollHeight = this._getScrollHeight();
  
        var maxScroll = this._config.offset + scrollHeight - this._getOffsetHeight();
  
        if (this._scrollHeight !== scrollHeight) {
          this.refresh();
        }
  
        if (scrollTop >= maxScroll) {
          var target = this._targets[this._targets.length - 1];
  
          if (this._activeTarget !== target) {
            this._activate(target);
          }
  
          return;
        }
  
        if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
          this._activeTarget = null;
  
          this._clear();
  
          return;
        }
  
        var offsetLength = this._offsets.length;
  
        for (var i = offsetLength; i--;) {
          var isActiveTarget = this._activeTarget !== this._targets[i] && scrollTop >= this._offsets[i] && (typeof this._offsets[i + 1] === 'undefined' || scrollTop < this._offsets[i + 1]);
  
          if (isActiveTarget) {
            this._activate(this._targets[i]);
          }
        }
      };
  
      _proto._activate = function _activate(target) {
        this._activeTarget = target;
  
        this._clear();
  
        var queries = this._selector.split(',').map(function (selector) {
          return selector + "[data-target=\"" + target + "\"]," + selector + "[href=\"" + target + "\"]";
        });
  
        var $link = $([].slice.call(document.querySelectorAll(queries.join(','))));
  
        if ($link.hasClass(ClassName$8.DROPDOWN_ITEM)) {
          $link.closest(Selector$8.DROPDOWN).find(Selector$8.DROPDOWN_TOGGLE).addClass(ClassName$8.ACTIVE);
          $link.addClass(ClassName$8.ACTIVE);
        } else {
          // Set triggered link as active
          $link.addClass(ClassName$8.ACTIVE); // Set triggered links parents as active
          // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
  
          $link.parents(Selector$8.NAV_LIST_GROUP).prev(Selector$8.NAV_LINKS + ", " + Selector$8.LIST_ITEMS).addClass(ClassName$8.ACTIVE); // Handle special case when .nav-link is inside .nav-item
  
          $link.parents(Selector$8.NAV_LIST_GROUP).prev(Selector$8.NAV_ITEMS).children(Selector$8.NAV_LINKS).addClass(ClassName$8.ACTIVE);
        }
  
        $(this._scrollElement).trigger(Event$8.ACTIVATE, {
          relatedTarget: target
        });
      };
  
      _proto._clear = function _clear() {
        [].slice.call(document.querySelectorAll(this._selector)).filter(function (node) {
          return node.classList.contains(ClassName$8.ACTIVE);
        }).forEach(function (node) {
          return node.classList.remove(ClassName$8.ACTIVE);
        });
      } // Static
      ;
  
      ScrollSpy._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $(this).data(DATA_KEY$8);
  
          var _config = typeof config === 'object' && config;
  
          if (!data) {
            data = new ScrollSpy(this, _config);
            $(this).data(DATA_KEY$8, data);
          }
  
          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }
  
            data[config]();
          }
        });
      };
  
      _createClass(ScrollSpy, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION$8;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default$6;
        }
      }]);
  
      return ScrollSpy;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */
  
  
    $(window).on(Event$8.LOAD_DATA_API, function () {
      var scrollSpys = [].slice.call(document.querySelectorAll(Selector$8.DATA_SPY));
      var scrollSpysLength = scrollSpys.length;
  
      for (var i = scrollSpysLength; i--;) {
        var $spy = $(scrollSpys[i]);
  
        ScrollSpy._jQueryInterface.call($spy, $spy.data());
      }
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
    $.fn[NAME$8] = ScrollSpy._jQueryInterface;
    $.fn[NAME$8].Constructor = ScrollSpy;
  
    $.fn[NAME$8].noConflict = function () {
      $.fn[NAME$8] = JQUERY_NO_CONFLICT$8;
      return ScrollSpy._jQueryInterface;
    };
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME$9 = 'tab';
    var VERSION$9 = '4.3.1';
    var DATA_KEY$9 = 'bs.tab';
    var EVENT_KEY$9 = "." + DATA_KEY$9;
    var DATA_API_KEY$7 = '.data-api';
    var JQUERY_NO_CONFLICT$9 = $.fn[NAME$9];
    var Event$9 = {
      HIDE: "hide" + EVENT_KEY$9,
      HIDDEN: "hidden" + EVENT_KEY$9,
      SHOW: "show" + EVENT_KEY$9,
      SHOWN: "shown" + EVENT_KEY$9,
      CLICK_DATA_API: "click" + EVENT_KEY$9 + DATA_API_KEY$7
    };
    var ClassName$9 = {
      DROPDOWN_MENU: 'dropdown-menu',
      ACTIVE: 'active',
      DISABLED: 'disabled',
      FADE: 'fade',
      SHOW: 'show'
    };
    var Selector$9 = {
      DROPDOWN: '.dropdown',
      NAV_LIST_GROUP: '.nav, .list-group',
      ACTIVE: '.active',
      ACTIVE_UL: '> li > .active',
      DATA_TOGGLE: '[data-toggle="tab"], [data-toggle="pill"], [data-toggle="list"]',
      DROPDOWN_TOGGLE: '.dropdown-toggle',
      DROPDOWN_ACTIVE_CHILD: '> .dropdown-menu .active'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */
  
    };
  
    var Tab =
    /*#__PURE__*/
    function () {
      function Tab(element) {
        this._element = element;
      } // Getters
  
  
      var _proto = Tab.prototype;
  
      // Public
      _proto.show = function show() {
        var _this = this;
  
        if (this._element.parentNode && this._element.parentNode.nodeType === Node.ELEMENT_NODE && $(this._element).hasClass(ClassName$9.ACTIVE) || $(this._element).hasClass(ClassName$9.DISABLED)) {
          return;
        }
  
        var target;
        var previous;
        var listElement = $(this._element).closest(Selector$9.NAV_LIST_GROUP)[0];
        var selector = Util.getSelectorFromElement(this._element);
  
        if (listElement) {
          var itemSelector = listElement.nodeName === 'UL' || listElement.nodeName === 'OL' ? Selector$9.ACTIVE_UL : Selector$9.ACTIVE;
          previous = $.makeArray($(listElement).find(itemSelector));
          previous = previous[previous.length - 1];
        }
  
        var hideEvent = $.Event(Event$9.HIDE, {
          relatedTarget: this._element
        });
        var showEvent = $.Event(Event$9.SHOW, {
          relatedTarget: previous
        });
  
        if (previous) {
          $(previous).trigger(hideEvent);
        }
  
        $(this._element).trigger(showEvent);
  
        if (showEvent.isDefaultPrevented() || hideEvent.isDefaultPrevented()) {
          return;
        }
  
        if (selector) {
          target = document.querySelector(selector);
        }
  
        this._activate(this._element, listElement);
  
        var complete = function complete() {
          var hiddenEvent = $.Event(Event$9.HIDDEN, {
            relatedTarget: _this._element
          });
          var shownEvent = $.Event(Event$9.SHOWN, {
            relatedTarget: previous
          });
          $(previous).trigger(hiddenEvent);
          $(_this._element).trigger(shownEvent);
        };
  
        if (target) {
          this._activate(target, target.parentNode, complete);
        } else {
          complete();
        }
      };
  
      _proto.dispose = function dispose() {
        $.removeData(this._element, DATA_KEY$9);
        this._element = null;
      } // Private
      ;
  
      _proto._activate = function _activate(element, container, callback) {
        var _this2 = this;
  
        var activeElements = container && (container.nodeName === 'UL' || container.nodeName === 'OL') ? $(container).find(Selector$9.ACTIVE_UL) : $(container).children(Selector$9.ACTIVE);
        var active = activeElements[0];
        var isTransitioning = callback && active && $(active).hasClass(ClassName$9.FADE);
  
        var complete = function complete() {
          return _this2._transitionComplete(element, active, callback);
        };
  
        if (active && isTransitioning) {
          var transitionDuration = Util.getTransitionDurationFromElement(active);
          $(active).removeClass(ClassName$9.SHOW).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
        } else {
          complete();
        }
      };
  
      _proto._transitionComplete = function _transitionComplete(element, active, callback) {
        if (active) {
          $(active).removeClass(ClassName$9.ACTIVE);
          var dropdownChild = $(active.parentNode).find(Selector$9.DROPDOWN_ACTIVE_CHILD)[0];
  
          if (dropdownChild) {
            $(dropdownChild).removeClass(ClassName$9.ACTIVE);
          }
  
          if (active.getAttribute('role') === 'tab') {
            active.setAttribute('aria-selected', false);
          }
        }
  
        $(element).addClass(ClassName$9.ACTIVE);
  
        if (element.getAttribute('role') === 'tab') {
          element.setAttribute('aria-selected', true);
        }
  
        Util.reflow(element);
  
        if (element.classList.contains(ClassName$9.FADE)) {
          element.classList.add(ClassName$9.SHOW);
        }
  
        if (element.parentNode && $(element.parentNode).hasClass(ClassName$9.DROPDOWN_MENU)) {
          var dropdownElement = $(element).closest(Selector$9.DROPDOWN)[0];
  
          if (dropdownElement) {
            var dropdownToggleList = [].slice.call(dropdownElement.querySelectorAll(Selector$9.DROPDOWN_TOGGLE));
            $(dropdownToggleList).addClass(ClassName$9.ACTIVE);
          }
  
          element.setAttribute('aria-expanded', true);
        }
  
        if (callback) {
          callback();
        }
      } // Static
      ;
  
      Tab._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var $this = $(this);
          var data = $this.data(DATA_KEY$9);
  
          if (!data) {
            data = new Tab(this);
            $this.data(DATA_KEY$9, data);
          }
  
          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }
  
            data[config]();
          }
        });
      };
  
      _createClass(Tab, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION$9;
        }
      }]);
  
      return Tab;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */
  
  
    $(document).on(Event$9.CLICK_DATA_API, Selector$9.DATA_TOGGLE, function (event) {
      event.preventDefault();
  
      Tab._jQueryInterface.call($(this), 'show');
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
    $.fn[NAME$9] = Tab._jQueryInterface;
    $.fn[NAME$9].Constructor = Tab;
  
    $.fn[NAME$9].noConflict = function () {
      $.fn[NAME$9] = JQUERY_NO_CONFLICT$9;
      return Tab._jQueryInterface;
    };
  
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
  
    var NAME$a = 'toast';
    var VERSION$a = '4.3.1';
    var DATA_KEY$a = 'bs.toast';
    var EVENT_KEY$a = "." + DATA_KEY$a;
    var JQUERY_NO_CONFLICT$a = $.fn[NAME$a];
    var Event$a = {
      CLICK_DISMISS: "click.dismiss" + EVENT_KEY$a,
      HIDE: "hide" + EVENT_KEY$a,
      HIDDEN: "hidden" + EVENT_KEY$a,
      SHOW: "show" + EVENT_KEY$a,
      SHOWN: "shown" + EVENT_KEY$a
    };
    var ClassName$a = {
      FADE: 'fade',
      HIDE: 'hide',
      SHOW: 'show',
      SHOWING: 'showing'
    };
    var DefaultType$7 = {
      animation: 'boolean',
      autohide: 'boolean',
      delay: 'number'
    };
    var Default$7 = {
      animation: true,
      autohide: true,
      delay: 500
    };
    var Selector$a = {
      DATA_DISMISS: '[data-dismiss="toast"]'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */
  
    };
  
    var Toast =
    /*#__PURE__*/
    function () {
      function Toast(element, config) {
        this._element = element;
        this._config = this._getConfig(config);
        this._timeout = null;
  
        this._setListeners();
      } // Getters
  
  
      var _proto = Toast.prototype;
  
      // Public
      _proto.show = function show() {
        var _this = this;
  
        $(this._element).trigger(Event$a.SHOW);
  
        if (this._config.animation) {
          this._element.classList.add(ClassName$a.FADE);
        }
  
        var complete = function complete() {
          _this._element.classList.remove(ClassName$a.SHOWING);
  
          _this._element.classList.add(ClassName$a.SHOW);
  
          $(_this._element).trigger(Event$a.SHOWN);
  
          if (_this._config.autohide) {
            _this.hide();
          }
        };
  
        this._element.classList.remove(ClassName$a.HIDE);
  
        this._element.classList.add(ClassName$a.SHOWING);
  
        if (this._config.animation) {
          var transitionDuration = Util.getTransitionDurationFromElement(this._element);
          $(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
        } else {
          complete();
        }
      };
  
      _proto.hide = function hide(withoutTimeout) {
        var _this2 = this;
  
        if (!this._element.classList.contains(ClassName$a.SHOW)) {
          return;
        }
  
        $(this._element).trigger(Event$a.HIDE);
  
        if (withoutTimeout) {
          this._close();
        } else {
          this._timeout = setTimeout(function () {
            _this2._close();
          }, this._config.delay);
        }
      };
  
      _proto.dispose = function dispose() {
        clearTimeout(this._timeout);
        this._timeout = null;
  
        if (this._element.classList.contains(ClassName$a.SHOW)) {
          this._element.classList.remove(ClassName$a.SHOW);
        }
  
        $(this._element).off(Event$a.CLICK_DISMISS);
        $.removeData(this._element, DATA_KEY$a);
        this._element = null;
        this._config = null;
      } // Private
      ;
  
      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, Default$7, $(this._element).data(), typeof config === 'object' && config ? config : {});
        Util.typeCheckConfig(NAME$a, config, this.constructor.DefaultType);
        return config;
      };
  
      _proto._setListeners = function _setListeners() {
        var _this3 = this;
  
        $(this._element).on(Event$a.CLICK_DISMISS, Selector$a.DATA_DISMISS, function () {
          return _this3.hide(true);
        });
      };
  
      _proto._close = function _close() {
        var _this4 = this;
  
        var complete = function complete() {
          _this4._element.classList.add(ClassName$a.HIDE);
  
          $(_this4._element).trigger(Event$a.HIDDEN);
        };
  
        this._element.classList.remove(ClassName$a.SHOW);
  
        if (this._config.animation) {
          var transitionDuration = Util.getTransitionDurationFromElement(this._element);
          $(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
        } else {
          complete();
        }
      } // Static
      ;
  
      Toast._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var $element = $(this);
          var data = $element.data(DATA_KEY$a);
  
          var _config = typeof config === 'object' && config;
  
          if (!data) {
            data = new Toast(this, _config);
            $element.data(DATA_KEY$a, data);
          }
  
          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }
  
            data[config](this);
          }
        });
      };
  
      _createClass(Toast, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION$a;
        }
      }, {
        key: "DefaultType",
        get: function get() {
          return DefaultType$7;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default$7;
        }
      }]);
  
      return Toast;
    }();
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */
  
  
    $.fn[NAME$a] = Toast._jQueryInterface;
    $.fn[NAME$a].Constructor = Toast;
  
    $.fn[NAME$a].noConflict = function () {
      $.fn[NAME$a] = JQUERY_NO_CONFLICT$a;
      return Toast._jQueryInterface;
    };
  
    /**
     * --------------------------------------------------------------------------
     * Bootstrap (v4.3.1): index.js
     * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
     * --------------------------------------------------------------------------
     */
  
    (function () {
      if (typeof $ === 'undefined') {
        throw new TypeError('Bootstrap\'s JavaScript requires jQuery. jQuery must be included before Bootstrap\'s JavaScript.');
      }
  
      var version = $.fn.jquery.split(' ')[0].split('.');
      var minMajor = 1;
      var ltMajor = 2;
      var minMinor = 9;
      var minPatch = 1;
      var maxMajor = 4;
  
      if (version[0] < ltMajor && version[1] < minMinor || version[0] === minMajor && version[1] === minMinor && version[2] < minPatch || version[0] >= maxMajor) {
        throw new Error('Bootstrap\'s JavaScript requires at least jQuery v1.9.1 but less than v4.0.0');
      }
    })();
  
    exports.Util = Util;
    exports.Alert = Alert;
    exports.Button = Button;
    exports.Carousel = Carousel;
    exports.Collapse = Collapse;
    exports.Dropdown = Dropdown;
    exports.Modal = Modal;
    exports.Popover = Popover;
    exports.Scrollspy = ScrollSpy;
    exports.Tab = Tab;
    exports.Toast = Toast;
    exports.Tooltip = Tooltip;
  
    Object.defineProperty(exports, '__esModule', { value: true });
  
  }));
  //# sourceMappingURL=bootstrap.bundle.js.map
  