text: export { qs, qsa, $on, $delegate, $parent, remove }
  
  // Get element(s) by CSS selector:
  function qs (selector, scope) {
    return (scope || document).querySelector(selector)
  }
  
  function qsa (selector, scope) {
    return (scope || document).querySelectorAll(selector)
  }
  
  // addEventListener wrapper:
  function $on (target, type, callback, useCapture) {
    target.addEventListener(type, callback, !!useCapture)
  }
  
  // Attach a handler to event for all elements that match the selector,
  // now or in the future, based on a root element
  function $delegate (target, selector, type, handler) {
    // https://developer.mozilla.org/en-US/docs/Web/Events/blur
    var useCapture = type === 'blur' || type === 'focus'
    $on(target, type, dispatchEvent, useCapture)
  
    function dispatchEvent (event) {
      var targetElement = event.target
      var potentialElements = qsa(selector, target)
      var hasMatch = Array.prototype.indexOf.call(potentialElements, targetElement) >= 0
  
      if (hasMatch) {
        handler.call(targetElement, event)
      }
    }
  }
  
  // Find the element's parent with the given tag name:
  // $parent(qs('a'), 'div');
  function $parent (element, tagName) {
    if (!element.parentNode) {
      return undefined
    }
    if (element.parentNode.tagName.toLowerCase() === tagName.toLowerCase()) {
      return element.parentNode
    }
    return $parent(element.parentNode, tagName)
  }
  
  // removes an element from an array
  // const x = [1,2,3]
  // remove(x, 2)
  // x ~== [1,3]
  function remove (array, thing) {
    const index = array.indexOf(thing)
    if (index === -1) {
      return array
    }
    array.splice(index, 1)
  }
  
  // Allow for looping on nodes by chaining:
  // qsa('.foo').forEach(function () {})
  NodeList.prototype.forEach = Array.prototype.forEach
  