text: export var top = 'top';
  export var bottom = 'bottom';
  export var right = 'right';
  export var left = 'left';
  export var auto = 'auto';
  export var basePlacements = [top, bottom, right, left];
  export var start = 'start';
  export var end = 'end';
  export var clippingParents = 'clippingParents';
  export var viewport = 'viewport';
  export var popper = 'popper';
  export var reference = 'reference';
  export var variationPlacements = /*#__PURE__*/basePlacements.reduce(function (acc, placement) {
    return acc.concat([placement + "-" + start, placement + "-" + end]);
  }, []);
  export var placements = /*#__PURE__*/[].concat(basePlacements, [auto]).reduce(function (acc, placement) {
    return acc.concat([placement, placement + "-" + start, placement + "-" + end]);
  }, []); // modifiers that need to read the DOM
  
  export var beforeRead = 'beforeRead';
  export var read = 'read';
  export var afterRead = 'afterRead'; // pure-logic modifiers
  
  export var beforeMain = 'beforeMain';
  export var main = 'main';
  export var afterMain = 'afterMain'; // modifier with the purpose to write to the DOM (or write into a framework state)
  
  export var beforeWrite = 'beforeWrite';
  export var write = 'write';
  export var afterWrite = 'afterWrite';
  export var modifierPhases = [beforeRead, read, afterRead, beforeMain, main, afterMain, beforeWrite, write, afterWrite];