first commit

node_modules/@popperjs/core/dist/esm/utils/debounce.js

+export default function debounce(fn) {
+  var pending;
+  return function () {
+    if (!pending) {
+      pending = new Promise(function (resolve) {
+        Promise.resolve().then(function () {
+          pending = undefined;
+          resolve(fn());
+        });
+      });
+    }
+
+    return pending;
+  };
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/detectOverflow.js

+import getBoundingClientRect from "../dom-utils/getBoundingClientRect.js";
+import getClippingRect from "../dom-utils/getClippingRect.js";
+import getDocumentElement from "../dom-utils/getDocumentElement.js";
+import computeOffsets from "./computeOffsets.js";
+import rectToClientRect from "./rectToClientRect.js";
+import { clippingParents, reference, popper, bottom, top, right, basePlacements, viewport } from "../enums.js";
+import { isElement } from "../dom-utils/instanceOf.js";
+import mergePaddingObject from "./mergePaddingObject.js";
+import expandToHashMap from "./expandToHashMap.js"; // eslint-disable-next-line import/no-unused-modules
+
+export default function detectOverflow(state, options) {
+  if (options === void 0) {
+    options = {};
+  }
+
+  var _options = options,
+      _options$placement = _options.placement,
+      placement = _options$placement === void 0 ? state.placement : _options$placement,
+      _options$boundary = _options.boundary,
+      boundary = _options$boundary === void 0 ? clippingParents : _options$boundary,
+      _options$rootBoundary = _options.rootBoundary,
+      rootBoundary = _options$rootBoundary === void 0 ? viewport : _options$rootBoundary,
+      _options$elementConte = _options.elementContext,
+      elementContext = _options$elementConte === void 0 ? popper : _options$elementConte,
+      _options$altBoundary = _options.altBoundary,
+      altBoundary = _options$altBoundary === void 0 ? false : _options$altBoundary,
+      _options$padding = _options.padding,
+      padding = _options$padding === void 0 ? 0 : _options$padding;
+  var paddingObject = mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements));
+  var altContext = elementContext === popper ? reference : popper;
+  var referenceElement = state.elements.reference;
+  var popperRect = state.rects.popper;
+  var element = state.elements[altBoundary ? altContext : elementContext];
+  var clippingClientRect = getClippingRect(isElement(element) ? element : element.contextElement || getDocumentElement(state.elements.popper), boundary, rootBoundary);
+  var referenceClientRect = getBoundingClientRect(referenceElement);
+  var popperOffsets = computeOffsets({
+    reference: referenceClientRect,
+    element: popperRect,
+    strategy: 'absolute',
+    placement: placement
+  });
+  var popperClientRect = rectToClientRect(Object.assign(Object.assign({}, popperRect), popperOffsets));
+  var elementClientRect = elementContext === popper ? popperClientRect : referenceClientRect; // positive = overflowing the clipping rect
+  // 0 or negative = within the clipping rect
+
+  var overflowOffsets = {
+    top: clippingClientRect.top - elementClientRect.top + paddingObject.top,
+    bottom: elementClientRect.bottom - clippingClientRect.bottom + paddingObject.bottom,
+    left: clippingClientRect.left - elementClientRect.left + paddingObject.left,
+    right: elementClientRect.right - clippingClientRect.right + paddingObject.right
+  };
+  var offsetData = state.modifiersData.offset; // Offsets can be applied only to the popper element
+
+  if (elementContext === popper && offsetData) {
+    var offset = offsetData[placement];
+    Object.keys(overflowOffsets).forEach(function (key) {
+      var multiply = [right, bottom].indexOf(key) >= 0 ? 1 : -1;
+      var axis = [top, bottom].indexOf(key) >= 0 ? 'y' : 'x';
+      overflowOffsets[key] += offset[axis] * multiply;
+    });
+  }
+
+  return overflowOffsets;
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/expandToHashMap.js

+export default function expandToHashMap(value, keys) {
+  return keys.reduce(function (hashMap, key) {
+    hashMap[key] = value;
+    return hashMap;
+  }, {});
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/format.js

+export default function format(str) {
+  for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+    args[_key - 1] = arguments[_key];
+  }
+
+  return [].concat(args).reduce(function (p, c) {
+    return p.replace(/%s/, c);
+  }, str);
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/getAltAxis.js

+export default function getAltAxis(axis) {
+  return axis === 'x' ? 'y' : 'x';
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/getAltLen.js

+export default function getAltLen(len) {
+  return len === 'width' ? 'height' : 'width';
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/getBasePlacement.js

+import { auto } from "../enums.js";
+export default function getBasePlacement(placement) {
+  return placement.split('-')[0];
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/getFreshSideObject.js

+export default function getFreshSideObject() {
+  return {
+    top: 0,
+    right: 0,
+    bottom: 0,
+    left: 0
+  };
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/getMainAxisFromPlacement.js

+export default function getMainAxisFromPlacement(placement) {
+  return ['top', 'bottom'].indexOf(placement) >= 0 ? 'x' : 'y';
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/getOppositePlacement.js

+var hash = {
+  left: 'right',
+  right: 'left',
+  bottom: 'top',
+  top: 'bottom'
+};
+export default function getOppositePlacement(placement) {
+  return placement.replace(/left|right|bottom|top/g, function (matched) {
+    return hash[matched];
+  });
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/getOppositeVariationPlacement.js

+var hash = {
+  start: 'end',
+  end: 'start'
+};
+export default function getOppositeVariationPlacement(placement) {
+  return placement.replace(/start|end/g, function (matched) {
+    return hash[matched];
+  });
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/getVariation.js

+export default function getVariation(placement) {
+  return placement.split('-')[1];
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/mergeByName.js

+export default function mergeByName(modifiers) {
+  var merged = modifiers.reduce(function (merged, current) {
+    var existing = merged[current.name];
+    merged[current.name] = existing ? Object.assign(Object.assign(Object.assign({}, existing), current), {}, {
+      options: Object.assign(Object.assign({}, existing.options), current.options),
+      data: Object.assign(Object.assign({}, existing.data), current.data)
+    }) : current;
+    return merged;
+  }, {}); // IE11 does not support Object.values
+
+  return Object.keys(merged).map(function (key) {
+    return merged[key];
+  });
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/mergePaddingObject.js

+import getFreshSideObject from "./getFreshSideObject.js";
+export default function mergePaddingObject(paddingObject) {
+  return Object.assign(Object.assign({}, getFreshSideObject()), paddingObject);
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/orderModifiers.js

+import { modifierPhases } from "../enums.js"; // source: https://stackoverflow.com/questions/49875255
+
+function order(modifiers) {
+  var map = new Map();
+  var visited = new Set();
+  var result = [];
+  modifiers.forEach(function (modifier) {
+    map.set(modifier.name, modifier);
+  }); // On visiting object, check for its dependencies and visit them recursively
+
+  function sort(modifier) {
+    visited.add(modifier.name);
+    var requires = [].concat(modifier.requires || [], modifier.requiresIfExists || []);
+    requires.forEach(function (dep) {
+      if (!visited.has(dep)) {
+        var depModifier = map.get(dep);
+
+        if (depModifier) {
+          sort(depModifier);
+        }
+      }
+    });
+    result.push(modifier);
+  }
+
+  modifiers.forEach(function (modifier) {
+    if (!visited.has(modifier.name)) {
+      // check for visited object
+      sort(modifier);
+    }
+  });
+  return result;
+}
+
+export default function orderModifiers(modifiers) {
+  // order based on dependencies
+  var orderedModifiers = order(modifiers); // order based on phase
+
+  return modifierPhases.reduce(function (acc, phase) {
+    return acc.concat(orderedModifiers.filter(function (modifier) {
+      return modifier.phase === phase;
+    }));
+  }, []);
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/rectToClientRect.js

+export default function rectToClientRect(rect) {
+  return Object.assign(Object.assign({}, rect), {}, {
+    left: rect.x,
+    top: rect.y,
+    right: rect.x + rect.width,
+    bottom: rect.y + rect.height
+  });
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/uniqueBy.js

+export default function uniqueBy(arr, fn) {
+  var identifiers = new Set();
+  return arr.filter(function (item) {
+    var identifier = fn(item);
+
+    if (!identifiers.has(identifier)) {
+      identifiers.add(identifier);
+      return true;
+    }
+  });
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/validateModifiers.js

+import format from "./format.js";
+import { modifierPhases } from "../enums.js";
+var INVALID_MODIFIER_ERROR = 'Popper: modifier "%s" provided an invalid %s property, expected %s but got %s';
+var MISSING_DEPENDENCY_ERROR = 'Popper: modifier "%s" requires "%s", but "%s" modifier is not available';
+var VALID_PROPERTIES = ['name', 'enabled', 'phase', 'fn', 'effect', 'requires', 'options'];
+export default function validateModifiers(modifiers) {
+  modifiers.forEach(function (modifier) {
+    Object.keys(modifier).forEach(function (key) {
+      switch (key) {
+        case 'name':
+          if (typeof modifier.name !== 'string') {
+            console.error(format(INVALID_MODIFIER_ERROR, String(modifier.name), '"name"', '"string"', "\"" + String(modifier.name) + "\""));
+          }
+
+          break;
+
+        case 'enabled':
+          if (typeof modifier.enabled !== 'boolean') {
+            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"enabled"', '"boolean"', "\"" + String(modifier.enabled) + "\""));
+          }
+
+        case 'phase':
+          if (modifierPhases.indexOf(modifier.phase) < 0) {
+            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"phase"', "either " + modifierPhases.join(', '), "\"" + String(modifier.phase) + "\""));
+          }
+
+          break;
+
+        case 'fn':
+          if (typeof modifier.fn !== 'function') {
+            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"fn"', '"function"', "\"" + String(modifier.fn) + "\""));
+          }
+
+          break;
+
+        case 'effect':
+          if (typeof modifier.effect !== 'function') {
+            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"effect"', '"function"', "\"" + String(modifier.fn) + "\""));
+          }
+
+          break;
+
+        case 'requires':
+          if (!Array.isArray(modifier.requires)) {
+            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requires"', '"array"', "\"" + String(modifier.requires) + "\""));
+          }
+
+          break;
+
+        case 'requiresIfExists':
+          if (!Array.isArray(modifier.requiresIfExists)) {
+            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requiresIfExists"', '"array"', "\"" + String(modifier.requiresIfExists) + "\""));
+          }
+
+          break;
+
+        case 'options':
+        case 'data':
+          break;
+
+        default:
+          console.error("PopperJS: an invalid property has been provided to the \"" + modifier.name + "\" modifier, valid properties are " + VALID_PROPERTIES.map(function (s) {
+            return "\"" + s + "\"";
+          }).join(', ') + "; but \"" + key + "\" was provided.");
+      }
+
+      modifier.requires && modifier.requires.forEach(function (requirement) {
+        if (modifiers.find(function (mod) {
+          return mod.name === requirement;
+        }) == null) {
+          console.error(format(MISSING_DEPENDENCY_ERROR, String(modifier.name), requirement, requirement));
+        }
+      });
+    });
+  });
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/esm/utils/within.js

+export default function within(min, value, max) {
+  return Math.max(min, Math.min(value, max));
+}
\ No newline at end of file

node_modules/@popperjs/core/dist/umd/popper-base.js

+/**
+ * @popperjs/core v2.6.0 - MIT License
+ */
+
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+  typeof define === 'function' && define.amd ? define(['exports'], factory) :
+  (global = global || self, factory(global.Popper = {}));
+}(this, (function (exports) { 'use strict';
+
+  function getBoundingClientRect(element) {
+    var rect = element.getBoundingClientRect();
+    return {
+      width: rect.width,
+      height: rect.height,
+      top: rect.top,
+      right: rect.right,
+      bottom: rect.bottom,
+      left: rect.left,
+      x: rect.left,
+      y: rect.top
+    };
+  }
+
+  /*:: import type { Window } from '../types'; */
+
+  /*:: declare function getWindow(node: Node | Window): Window; */
+  function getWindow(node) {
+    if (node.toString() !== '[object Window]') {
+      var ownerDocument = node.ownerDocument;
+      return ownerDocument ? ownerDocument.defaultView || window : window;
+    }
+
+    return node;
+  }
+
+  function getWindowScroll(node) {
+    var win = getWindow(node);
+    var scrollLeft = win.pageXOffset;
+    var scrollTop = win.pageYOffset;
+    return {
+      scrollLeft: scrollLeft,
+      scrollTop: scrollTop
+    };
+  }
+
+  /*:: declare function isElement(node: mixed): boolean %checks(node instanceof
+    Element); */
+
+  function isElement(node) {
+    var OwnElement = getWindow(node).Element;
+    return node instanceof OwnElement || node instanceof Element;
+  }
+  /*:: declare function isHTMLElement(node: mixed): boolean %checks(node instanceof
+    HTMLElement); */
+
+
+  function isHTMLElement(node) {
+    var OwnElement = getWindow(node).HTMLElement;
+    return node instanceof OwnElement || node instanceof HTMLElement;
+  }
+  /*:: declare function isShadowRoot(node: mixed): boolean %checks(node instanceof
+    ShadowRoot); */
+
+
+  function isShadowRoot(node) {
+    var OwnElement = getWindow(node).ShadowRoot;
+    return node instanceof OwnElement || node instanceof ShadowRoot;
+  }
+
+  function getHTMLElementScroll(element) {
+    return {
+      scrollLeft: element.scrollLeft,
+      scrollTop: element.scrollTop
+    };
+  }
+
+  function getNodeScroll(node) {
+    if (node === getWindow(node) || !isHTMLElement(node)) {
+      return getWindowScroll(node);
+    } else {
+      return getHTMLElementScroll(node);
+    }
+  }
+
+  function getNodeName(element) {
+    return element ? (element.nodeName || '').toLowerCase() : null;
+  }
+
+  function getDocumentElement(element) {
+    // $FlowFixMe[incompatible-return]: assume body is always available
+    return ((isElement(element) ? element.ownerDocument : // $FlowFixMe[prop-missing]
+    element.document) || window.document).documentElement;
+  }
+
+  function getWindowScrollBarX(element) {
+    // If <html> has a CSS width greater than the viewport, then this will be
+    // incorrect for RTL.
+    // Popper 1 is broken in this case and never had a bug report so let's assume
+    // it's not an issue. I don't think anyone ever specifies width on <html>
+    // anyway.
+    // Browsers where the left scrollbar doesn't cause an issue report `0` for
+    // this (e.g. Edge 2019, IE11, Safari)
+    return getBoundingClientRect(getDocumentElement(element)).left + getWindowScroll(element).scrollLeft;
+  }
+
+  function getComputedStyle(element) {
+    return getWindow(element).getComputedStyle(element);
+  }
+
+  function isScrollParent(element) {
+    // Firefox wants us to check `-x` and `-y` variations as well
+    var _getComputedStyle = getComputedStyle(element),
+        overflow = _getComputedStyle.overflow,
+        overflowX = _getComputedStyle.overflowX,
+        overflowY = _getComputedStyle.overflowY;
+
+    return /auto|scroll|overlay|hidden/.test(overflow + overflowY + overflowX);
+  }
+
+  // Composite means it takes into account transforms as well as layout.
+
+  function getCompositeRect(elementOrVirtualElement, offsetParent, isFixed) {
+    if (isFixed === void 0) {
+      isFixed = false;
+    }
+
+    var documentElement = getDocumentElement(offsetParent);
+    var rect = getBoundingClientRect(elementOrVirtualElement);
+    var isOffsetParentAnElement = isHTMLElement(offsetParent);
+    var scroll = {
+      scrollLeft: 0,
+      scrollTop: 0
+    };
+    var offsets = {
+      x: 0,
+      y: 0
+    };
+
+    if (isOffsetParentAnElement || !isOffsetParentAnElement && !isFixed) {
+      if (getNodeName(offsetParent) !== 'body' || // https://github.com/popperjs/popper-core/issues/1078
+      isScrollParent(documentElement)) {
+        scroll = getNodeScroll(offsetParent);
+      }
+
+      if (isHTMLElement(offsetParent)) {
+        offsets = getBoundingClientRect(offsetParent);
+        offsets.x += offsetParent.clientLeft;
+        offsets.y += offsetParent.clientTop;
+      } else if (documentElement) {
+        offsets.x = getWindowScrollBarX(documentElement);
+      }
+    }
+
+    return {
+      x: rect.left + scroll.scrollLeft - offsets.x,
+      y: rect.top + scroll.scrollTop - offsets.y,
+      width: rect.width,
+      height: rect.height
+    };
+  }
+
+  // Returns the layout rect of an element relative to its offsetParent. Layout
+  // means it doesn't take into account transforms.
+  function getLayoutRect(element) {
+    return {
+      x: element.offsetLeft,
+      y: element.offsetTop,
+      width: element.offsetWidth,
+      height: element.offsetHeight
+    };
+  }
+
+  function getParentNode(element) {
+    if (getNodeName(element) === 'html') {
+      return element;
+    }
+
+    return (// this is a quicker (but less type safe) way to save quite some bytes from the bundle
+      // $FlowFixMe[incompatible-return]
+      // $FlowFixMe[prop-missing]
+      element.assignedSlot || // step into the shadow DOM of the parent of a slotted node
+      element.parentNode || // DOM Element detected
+      // $FlowFixMe[incompatible-return]: need a better way to handle this...
+      element.host || // ShadowRoot detected
+      // $FlowFixMe[incompatible-call]: HTMLElement is a Node
+      getDocumentElement(element) // fallback
+
+    );
+  }
+
+  function getScrollParent(node) {
+    if (['html', 'body', '#document'].indexOf(getNodeName(node)) >= 0) {
+      // $FlowFixMe[incompatible-return]: assume body is always available
+      return node.ownerDocument.body;
+    }
+
+    if (isHTMLElement(node) && isScrollParent(node)) {
+      return node;
+    }
+
+    return getScrollParent(getParentNode(node));
+  }
+
+  /*
+  given a DOM element, return the list of all scroll parents, up the list of ancesors
+  until we get to the top window object. This list is what we attach scroll listeners
+  to, because if any of these parent elements scroll, we'll need to re-calculate the
+  reference element's position.
+  */
+
+  function listScrollParents(element, list) {
+    if (list === void 0) {
+      list = [];
+    }
+
+    var scrollParent = getScrollParent(element);
+    var isBody = getNodeName(scrollParent) === 'body';
+    var win = getWindow(scrollParent);
+    var target = isBody ? [win].concat(win.visualViewport || [], isScrollParent(scrollParent) ? scrollParent : []) : scrollParent;
+    var updatedList = list.concat(target);
+    return isBody ? updatedList : // $FlowFixMe[incompatible-call]: isBody tells us target will be an HTMLElement here
+    updatedList.concat(listScrollParents(getParentNode(target)));
+  }
+
+  function isTableElement(element) {
+    return ['table', 'td', 'th'].indexOf(getNodeName(element)) >= 0;
+  }
+
+  function getTrueOffsetParent(element) {
+    if (!isHTMLElement(element) || // https://github.com/popperjs/popper-core/issues/837
+    getComputedStyle(element).position === 'fixed') {
+      return null;
+    }
+
+    var offsetParent = element.offsetParent;
+
+    if (offsetParent) {
+      var html = getDocumentElement(offsetParent);
+
+      if (getNodeName(offsetParent) === 'body' && getComputedStyle(offsetParent).position === 'static' && getComputedStyle(html).position !== 'static') {
+        return html;
+      }
+    }
+
+    return offsetParent;
+  } // `.offsetParent` reports `null` for fixed elements, while absolute elements
+  // return the containing block
+
+
+  function getContainingBlock(element) {
+    var currentNode = getParentNode(element);
+
+    while (isHTMLElement(currentNode) && ['html', 'body'].indexOf(getNodeName(currentNode)) < 0) {
+      var css = getComputedStyle(currentNode); // This is non-exhaustive but covers the most common CSS properties that
+      // create a containing block.
+
+      if (css.transform !== 'none' || css.perspective !== 'none' || css.willChange && css.willChange !== 'auto') {
+        return currentNode;
+      } else {
+        currentNode = currentNode.parentNode;
+      }
+    }
+
+    return null;
+  } // Gets the closest ancestor positioned element. Handles some edge cases,
+  // such as table ancestors and cross browser bugs.
+
+
+  function getOffsetParent(element) {
+    var window = getWindow(element);
+    var offsetParent = getTrueOffsetParent(element);
+
+    while (offsetParent && isTableElement(offsetParent) && getComputedStyle(offsetParent).position === 'static') {
+      offsetParent = getTrueOffsetParent(offsetParent);
+    }
+
+    if (offsetParent && getNodeName(offsetParent) === 'body' && getComputedStyle(offsetParent).position === 'static') {
+      return window;
+    }
+
+    return offsetParent || getContainingBlock(element) || window;
+  }
+
+  var top = 'top';
+  var bottom = 'bottom';
+  var right = 'right';
+  var left = 'left';
+  var auto = 'auto';
+  var basePlacements = [top, bottom, right, left];
+  var start = 'start';
+  var end = 'end';
+  var clippingParents = 'clippingParents';
+  var viewport = 'viewport';
+  var popper = 'popper';
+  var reference = 'reference';
+
+  var beforeRead = 'beforeRead';
+  var read = 'read';
+  var afterRead = 'afterRead'; // pure-logic modifiers
+
+  var beforeMain = 'beforeMain';
+  var main = 'main';
+  var afterMain = 'afterMain'; // modifier with the purpose to write to the DOM (or write into a framework state)
+
+  var beforeWrite = 'beforeWrite';
+  var write = 'write';
+  var afterWrite = 'afterWrite';
+  var modifierPhases = [beforeRead, read, afterRead, beforeMain, main, afterMain, beforeWrite, write, afterWrite];
+
+  function order(modifiers) {
+    var map = new Map();
+    var visited = new Set();
+    var result = [];
+    modifiers.forEach(function (modifier) {
+      map.set(modifier.name, modifier);
+    }); // On visiting object, check for its dependencies and visit them recursively
+
+    function sort(modifier) {
+      visited.add(modifier.name);
+      var requires = [].concat(modifier.requires || [], modifier.requiresIfExists || []);
+      requires.forEach(function (dep) {
+        if (!visited.has(dep)) {
+          var depModifier = map.get(dep);
+
+          if (depModifier) {
+            sort(depModifier);
+          }
+        }
+      });
+      result.push(modifier);
+    }
+
+    modifiers.forEach(function (modifier) {
+      if (!visited.has(modifier.name)) {
+        // check for visited object
+        sort(modifier);
+      }
+    });
+    return result;
+  }
+
+  function orderModifiers(modifiers) {
+    // order based on dependencies
+    var orderedModifiers = order(modifiers); // order based on phase
+
+    return modifierPhases.reduce(function (acc, phase) {
+      return acc.concat(orderedModifiers.filter(function (modifier) {
+        return modifier.phase === phase;
+      }));
+    }, []);
+  }
+
+  function debounce(fn) {
+    var pending;
+    return function () {
+      if (!pending) {
+        pending = new Promise(function (resolve) {
+          Promise.resolve().then(function () {
+            pending = undefined;
+            resolve(fn());
+          });
+        });
+      }
+
+      return pending;
+    };
+  }
+
+  function format(str) {
+    for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+      args[_key - 1] = arguments[_key];
+    }
+
+    return [].concat(args).reduce(function (p, c) {
+      return p.replace(/%s/, c);
+    }, str);
+  }
+
+  var INVALID_MODIFIER_ERROR = 'Popper: modifier "%s" provided an invalid %s property, expected %s but got %s';
+  var MISSING_DEPENDENCY_ERROR = 'Popper: modifier "%s" requires "%s", but "%s" modifier is not available';
+  var VALID_PROPERTIES = ['name', 'enabled', 'phase', 'fn', 'effect', 'requires', 'options'];
+  function validateModifiers(modifiers) {
+    modifiers.forEach(function (modifier) {
+      Object.keys(modifier).forEach(function (key) {
+        switch (key) {
+          case 'name':
+            if (typeof modifier.name !== 'string') {
+              console.error(format(INVALID_MODIFIER_ERROR, String(modifier.name), '"name"', '"string"', "\"" + String(modifier.name) + "\""));
+            }
+
+            break;
+
+          case 'enabled':
+            if (typeof modifier.enabled !== 'boolean') {
+              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"enabled"', '"boolean"', "\"" + String(modifier.enabled) + "\""));
+            }
+
+          case 'phase':
+            if (modifierPhases.indexOf(modifier.phase) < 0) {
+              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"phase"', "either " + modifierPhases.join(', '), "\"" + String(modifier.phase) + "\""));
+            }
+
+            break;
+
+          case 'fn':
+            if (typeof modifier.fn !== 'function') {
+              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"fn"', '"function"', "\"" + String(modifier.fn) + "\""));
+            }
+
+            break;
+
+          case 'effect':
+            if (typeof modifier.effect !== 'function') {
+              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"effect"', '"function"', "\"" + String(modifier.fn) + "\""));
+            }
+
+            break;
+
+          case 'requires':
+            if (!Array.isArray(modifier.requires)) {
+              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requires"', '"array"', "\"" + String(modifier.requires) + "\""));
+            }
+
+            break;
+
+          case 'requiresIfExists':
+            if (!Array.isArray(modifier.requiresIfExists)) {
+              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requiresIfExists"', '"array"', "\"" + String(modifier.requiresIfExists) + "\""));
+            }
+
+            break;
+
+          case 'options':
+          case 'data':
+            break;
+
+          default:
+            console.error("PopperJS: an invalid property has been provided to the \"" + modifier.name + "\" modifier, valid properties are " + VALID_PROPERTIES.map(function (s) {
+              return "\"" + s + "\"";
+            }).join(', ') + "; but \"" + key + "\" was provided.");
+        }
+
+        modifier.requires && modifier.requires.forEach(function (requirement) {
+          if (modifiers.find(function (mod) {
+            return mod.name === requirement;
+          }) == null) {
+            console.error(format(MISSING_DEPENDENCY_ERROR, String(modifier.name), requirement, requirement));
+          }
+        });
+      });
+    });
+  }
+
+  function uniqueBy(arr, fn) {
+    var identifiers = new Set();
+    return arr.filter(function (item) {
+      var identifier = fn(item);
+
+      if (!identifiers.has(identifier)) {
+        identifiers.add(identifier);
+        return true;
+      }
+    });
+  }
+
+  function getBasePlacement(placement) {
+    return placement.split('-')[0];
+  }
+
+  function mergeByName(modifiers) {
+    var merged = modifiers.reduce(function (merged, current) {
+      var existing = merged[current.name];
+      merged[current.name] = existing ? Object.assign(Object.assign(Object.assign({}, existing), current), {}, {
+        options: Object.assign(Object.assign({}, existing.options), current.options),
+        data: Object.assign(Object.assign({}, existing.data), current.data)
+      }) : current;
+      return merged;
+    }, {}); // IE11 does not support Object.values
+
+    return Object.keys(merged).map(function (key) {
+      return merged[key];
+    });
+  }
+
+  function getViewportRect(element) {
+    var win = getWindow(element);
+    var html = getDocumentElement(element);
+    var visualViewport = win.visualViewport;
+    var width = html.clientWidth;
+    var height = html.clientHeight;
+    var x = 0;
+    var y = 0; // NB: This isn't supported on iOS <= 12. If the keyboard is open, the popper
+    // can be obscured underneath it.
+    // Also, `html.clientHeight` adds the bottom bar height in Safari iOS, even
+    // if it isn't open, so if this isn't available, the popper will be detected
+    // to overflow the bottom of the screen too early.
+
+    if (visualViewport) {
+      width = visualViewport.width;
+      height = visualViewport.height; // Uses Layout Viewport (like Chrome; Safari does not currently)
+      // In Chrome, it returns a value very close to 0 (+/-) but contains rounding
+      // errors due to floating point numbers, so we need to check precision.
+      // Safari returns a number <= 0, usually < -1 when pinch-zoomed
+      // Feature detection fails in mobile emulation mode in Chrome.
+      // Math.abs(win.innerWidth / visualViewport.scale - visualViewport.width) <
+      // 0.001
+      // Fallback here: "Not Safari" userAgent
+
+      if (!/^((?!chrome|android).)*safari/i.test(navigator.userAgent)) {
+        x = visualViewport.offsetLeft;
+        y = visualViewport.offsetTop;
+      }
+    }
+
+    return {
+      width: width,
+      height: height,
+      x: x + getWindowScrollBarX(element),
+      y: y
+    };
+  }
+
+  // of the `<html>` and `<body>` rect bounds if horizontally scrollable
+
+  function getDocumentRect(element) {
+    var html = getDocumentElement(element);
+    var winScroll = getWindowScroll(element);
+    var body = element.ownerDocument.body;
+    var width = Math.max(html.scrollWidth, html.clientWidth, body ? body.scrollWidth : 0, body ? body.clientWidth : 0);
+    var height = Math.max(html.scrollHeight, html.clientHeight, body ? body.scrollHeight : 0, body ? body.clientHeight : 0);
+    var x = -winScroll.scrollLeft + getWindowScrollBarX(element);
+    var y = -winScroll.scrollTop;
+
+    if (getComputedStyle(body || html).direction === 'rtl') {
+      x += Math.max(html.clientWidth, body ? body.clientWidth : 0) - width;
+    }
+
+    return {
+      width: width,
+      height: height,
+      x: x,
+      y: y
+    };
+  }
+
+  function contains(parent, child) {
+    var rootNode = child.getRootNode && child.getRootNode(); // First, attempt with faster native method
+
+    if (parent.contains(child)) {
+      return true;
+    } // then fallback to custom implementation with Shadow DOM support
+    else if (rootNode && isShadowRoot(rootNode)) {
+        var next = child;
+
+        do {
+          if (next && parent.isSameNode(next)) {
+            return true;
+          } // $FlowFixMe[prop-missing]: need a better way to handle this...
+
+
+          next = next.parentNode || next.host;
+        } while (next);
+      } // Give up, the result is false
+
+
+    return false;
+  }
+
+  function rectToClientRect(rect) {
+    return Object.assign(Object.assign({}, rect), {}, {
+      left: rect.x,
+      top: rect.y,
+      right: rect.x + rect.width,
+      bottom: rect.y + rect.height
+    });
+  }
+
+  function getInnerBoundingClientRect(element) {
+    var rect = getBoundingClientRect(element);
+    rect.top = rect.top + element.clientTop;
+    rect.left = rect.left + element.clientLeft;
+    rect.bottom = rect.top + element.clientHeight;
+    rect.right = rect.left + element.clientWidth;
+    rect.width = element.clientWidth;
+    rect.height = element.clientHeight;
+    rect.x = rect.left;
+    rect.y = rect.top;
+    return rect;
+  }
+
+  function getClientRectFromMixedType(element, clippingParent) {
+    return clippingParent === viewport ? rectToClientRect(getViewportRect(element)) : isHTMLElement(clippingParent) ? getInnerBoundingClientRect(clippingParent) : rectToClientRect(getDocumentRect(getDocumentElement(element)));
+  } // A "clipping parent" is an overflowable container with the characteristic of
+  // clipping (or hiding) overflowing elements with a position different from
+  // `initial`
+
+
+  function getClippingParents(element) {
+    var clippingParents = listScrollParents(getParentNode(element));
+    var canEscapeClipping = ['absolute', 'fixed'].indexOf(getComputedStyle(element).position) >= 0;
+    var clipperElement = canEscapeClipping && isHTMLElement(element) ? getOffsetParent(element) : element;
+
+    if (!isElement(clipperElement)) {
+      return [];
+    } // $FlowFixMe[incompatible-return]: https://github.com/facebook/flow/issues/1414
+
+
+    return clippingParents.filter(function (clippingParent) {
+      return isElement(clippingParent) && contains(clippingParent, clipperElement) && getNodeName(clippingParent) !== 'body';
+    });
+  } // Gets the maximum area that the element is visible in due to any number of
+  // clipping parents
+
+
+  function getClippingRect(element, boundary, rootBoundary) {
+    var mainClippingParents = boundary === 'clippingParents' ? getClippingParents(element) : [].concat(boundary);
+    var clippingParents = [].concat(mainClippingParents, [rootBoundary]);
+    var firstClippingParent = clippingParents[0];
+    var clippingRect = clippingParents.reduce(function (accRect, clippingParent) {
+      var rect = getClientRectFromMixedType(element, clippingParent);
+      accRect.top = Math.max(rect.top, accRect.top);
+      accRect.right = Math.min(rect.right, accRect.right);
+      accRect.bottom = Math.min(rect.bottom, accRect.bottom);
+      accRect.left = Math.max(rect.left, accRect.left);
+      return accRect;
+    }, getClientRectFromMixedType(element, firstClippingParent));
+    clippingRect.width = clippingRect.right - clippingRect.left;
+    clippingRect.height = clippingRect.bottom - clippingRect.top;
+    clippingRect.x = clippingRect.left;
+    clippingRect.y = clippingRect.top;
+    return clippingRect;
+  }
+
+  function getVariation(placement) {
+    return placement.split('-')[1];
+  }
+
+  function getMainAxisFromPlacement(placement) {
+    return ['top', 'bottom'].indexOf(placement) >= 0 ? 'x' : 'y';
+  }
+
+  function computeOffsets(_ref) {
+    var reference = _ref.reference,
+        element = _ref.element,
+        placement = _ref.placement;
+    var basePlacement = placement ? getBasePlacement(placement) : null;
+    var variation = placement ? getVariation(placement) : null;
+    var commonX = reference.x + reference.width / 2 - element.width / 2;
+    var commonY = reference.y + reference.height / 2 - element.height / 2;
+    var offsets;
+
+    switch (basePlacement) {
+      case top:
+        offsets = {
+          x: commonX,
+          y: reference.y - element.height
+        };
+        break;
+
+      case bottom:
+        offsets = {
+          x: commonX,
+          y: reference.y + reference.height
+        };
+        break;
+
+      case right:
+        offsets = {
+          x: reference.x + reference.width,
+          y: commonY
+        };
+        break;
+
+      case left:
+        offsets = {
+          x: reference.x - element.width,
+          y: commonY
+        };
+        break;
+
+      default:
+        offsets = {
+          x: reference.x,
+          y: reference.y
+        };
+    }
+
+    var mainAxis = basePlacement ? getMainAxisFromPlacement(basePlacement) : null;
+
+    if (mainAxis != null) {
+      var len = mainAxis === 'y' ? 'height' : 'width';
+
+      switch (variation) {
+        case start:
+          offsets[mainAxis] = offsets[mainAxis] - (reference[len] / 2 - element[len] / 2);
+          break;
+
+        case end:
+          offsets[mainAxis] = offsets[mainAxis] + (reference[len] / 2 - element[len] / 2);
+          break;
+      }
+    }
+
+    return offsets;
+  }
+
+  function getFreshSideObject() {
+    return {
+      top: 0,
+      right: 0,
+      bottom: 0,
+      left: 0
+    };
+  }
+
+  function mergePaddingObject(paddingObject) {
+    return Object.assign(Object.assign({}, getFreshSideObject()), paddingObject);
+  }
+
+  function expandToHashMap(value, keys) {
+    return keys.reduce(function (hashMap, key) {
+      hashMap[key] = value;
+      return hashMap;
+    }, {});
+  }
+
+  function detectOverflow(state, options) {
+    if (options === void 0) {
+      options = {};
+    }
+
+    var _options = options,
+        _options$placement = _options.placement,
+        placement = _options$placement === void 0 ? state.placement : _options$placement,
+        _options$boundary = _options.boundary,
+        boundary = _options$boundary === void 0 ? clippingParents : _options$boundary,
+        _options$rootBoundary = _options.rootBoundary,
+        rootBoundary = _options$rootBoundary === void 0 ? viewport : _options$rootBoundary,
+        _options$elementConte = _options.elementContext,
+        elementContext = _options$elementConte === void 0 ? popper : _options$elementConte,
+        _options$altBoundary = _options.altBoundary,
+        altBoundary = _options$altBoundary === void 0 ? false : _options$altBoundary,
+        _options$padding = _options.padding,
+        padding = _options$padding === void 0 ? 0 : _options$padding;
+    var paddingObject = mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements));
+    var altContext = elementContext === popper ? reference : popper;
+    var referenceElement = state.elements.reference;
+    var popperRect = state.rects.popper;
+    var element = state.elements[altBoundary ? altContext : elementContext];
+    var clippingClientRect = getClippingRect(isElement(element) ? element : element.contextElement || getDocumentElement(state.elements.popper), boundary, rootBoundary);
+    var referenceClientRect = getBoundingClientRect(referenceElement);
+    var popperOffsets = computeOffsets({
+      reference: referenceClientRect,
+      element: popperRect,
+      strategy: 'absolute',
+      placement: placement
+    });
+    var popperClientRect = rectToClientRect(Object.assign(Object.assign({}, popperRect), popperOffsets));
+    var elementClientRect = elementContext === popper ? popperClientRect : referenceClientRect; // positive = overflowing the clipping rect
+    // 0 or negative = within the clipping rect
+
+    var overflowOffsets = {
+      top: clippingClientRect.top - elementClientRect.top + paddingObject.top,
+      bottom: elementClientRect.bottom - clippingClientRect.bottom + paddingObject.bottom,
+      left: clippingClientRect.left - elementClientRect.left + paddingObject.left,
+      right: elementClientRect.right - clippingClientRect.right + paddingObject.right
+    };
+    var offsetData = state.modifiersData.offset; // Offsets can be applied only to the popper element
+
+    if (elementContext === popper && offsetData) {
+      var offset = offsetData[placement];
+      Object.keys(overflowOffsets).forEach(function (key) {
+        var multiply = [right, bottom].indexOf(key) >= 0 ? 1 : -1;
+        var axis = [top, bottom].indexOf(key) >= 0 ? 'y' : 'x';
+        overflowOffsets[key] += offset[axis] * multiply;
+      });
+    }
+
+    return overflowOffsets;
+  }
+
+  var INVALID_ELEMENT_ERROR = 'Popper: Invalid reference or popper argument provided. They must be either a DOM element or virtual element.';
+  var INFINITE_LOOP_ERROR = 'Popper: An infinite loop in the modifiers cycle has been detected! The cycle has been interrupted to prevent a browser crash.';
+  var DEFAULT_OPTIONS = {
+    placement: 'bottom',
+    modifiers: [],
+    strategy: 'absolute'
+  };
+
+  function areValidElements() {
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+
+    return !args.some(function (element) {
+      return !(element && typeof element.getBoundingClientRect === 'function');
+    });
+  }
+
+  function popperGenerator(generatorOptions) {
+    if (generatorOptions === void 0) {
+      generatorOptions = {};
+    }
+
+    var _generatorOptions = generatorOptions,
+        _generatorOptions$def = _generatorOptions.defaultModifiers,
+        defaultModifiers = _generatorOptions$def === void 0 ? [] : _generatorOptions$def,
+        _generatorOptions$def2 = _generatorOptions.defaultOptions,
+        defaultOptions = _generatorOptions$def2 === void 0 ? DEFAULT_OPTIONS : _generatorOptions$def2;
+    return function createPopper(reference, popper, options) {
+      if (options === void 0) {
+        options = defaultOptions;
+      }
+
+      var state = {
+        placement: 'bottom',
+        orderedModifiers: [],
+        options: Object.assign(Object.assign({}, DEFAULT_OPTIONS), defaultOptions),
+        modifiersData: {},
+        elements: {
+          reference: reference,
+          popper: popper
+        },
+        attributes: {},
+        styles: {}
+      };
+      var effectCleanupFns = [];
+      var isDestroyed = false;
+      var instance = {
+        state: state,
+        setOptions: function setOptions(options) {
+          cleanupModifierEffects();
+          state.options = Object.assign(Object.assign(Object.assign({}, defaultOptions), state.options), options);
+          state.scrollParents = {
+            reference: isElement(reference) ? listScrollParents(reference) : reference.contextElement ? listScrollParents(reference.contextElement) : [],
+            popper: listScrollParents(popper)
+          }; // Orders the modifiers based on their dependencies and `phase`
+          // properties
+
+          var orderedModifiers = orderModifiers(mergeByName([].concat(defaultModifiers, state.options.modifiers))); // Strip out disabled modifiers
+
+          state.orderedModifiers = orderedModifiers.filter(function (m) {
+            return m.enabled;
+          }); // Validate the provided modifiers so that the consumer will get warned
+          // if one of the modifiers is invalid for any reason
+
+          {
+            var modifiers = uniqueBy([].concat(orderedModifiers, state.options.modifiers), function (_ref) {
+              var name = _ref.name;
+              return name;
+            });
+            validateModifiers(modifiers);
+
+            if (getBasePlacement(state.options.placement) === auto) {
+              var flipModifier = state.orderedModifiers.find(function (_ref2) {
+                var name = _ref2.name;
+                return name === 'flip';
+              });
+
+              if (!flipModifier) {
+                console.error(['Popper: "auto" placements require the "flip" modifier be', 'present and enabled to work.'].join(' '));
+              }
+            }
+
+            var _getComputedStyle = getComputedStyle(popper),
+                marginTop = _getComputedStyle.marginTop,
+                marginRight = _getComputedStyle.marginRight,
+                marginBottom = _getComputedStyle.marginBottom,
+                marginLeft = _getComputedStyle.marginLeft; // We no longer take into account `margins` on the popper, and it can
+            // cause bugs with positioning, so we'll warn the consumer
+
+
+            if ([marginTop, marginRight, marginBottom, marginLeft].some(function (margin) {
+              return parseFloat(margin);
+            })) {
+              console.warn(['Popper: CSS "margin" styles cannot be used to apply padding', 'between the popper and its reference element or boundary.', 'To replicate margin, use the `offset` modifier, as well as', 'the `padding` option in the `preventOverflow` and `flip`', 'modifiers.'].join(' '));
+            }
+          }
+
+          runModifierEffects();
+          return instance.update();
+        },
+        // Sync update – it will always be executed, even if not necessary. This
+        // is useful for low frequency updates where sync behavior simplifies the
+        // logic.
+        // For high frequency updates (e.g. `resize` and `scroll` events), always
+        // prefer the async Popper#update method
+        forceUpdate: function forceUpdate() {
+          if (isDestroyed) {
+            return;
+          }
+
+          var _state$elements = state.elements,
+              reference = _state$elements.reference,
+              popper = _state$elements.popper; // Don't proceed if `reference` or `popper` are not valid elements
+          // anymore
+
+          if (!areValidElements(reference, popper)) {
+            {
+              console.error(INVALID_ELEMENT_ERROR);
+            }
+
+            return;
+          } // Store the reference and popper rects to be read by modifiers
+
+
+          state.rects = {
+            reference: getCompositeRect(reference, getOffsetParent(popper), state.options.strategy === 'fixed'),
+            popper: getLayoutRect(popper)
+          }; // Modifiers have the ability to reset the current update cycle. The
+          // most common use case for this is the `flip` modifier changing the
+          // placement, which then needs to re-run all the modifiers, because the
+          // logic was previously ran for the previous placement and is therefore
+          // stale/incorrect
+
+          state.reset = false;
+          state.placement = state.options.placement; // On each update cycle, the `modifiersData` property for each modifier
+          // is filled with the initial data specified by the modifier. This means
+          // it doesn't persist and is fresh on each update.
+          // To ensure persistent data, use `${name}#persistent`
+
+          state.orderedModifiers.forEach(function (modifier) {
+            return state.modifiersData[modifier.name] = Object.assign({}, modifier.data);
+          });
+          var __debug_loops__ = 0;
+
+          for (var index = 0; index < state.orderedModifiers.length; index++) {
+            {
+              __debug_loops__ += 1;
+
+              if (__debug_loops__ > 100) {
+                console.error(INFINITE_LOOP_ERROR);
+                break;
+              }
+            }
+
+            if (state.reset === true) {
+              state.reset = false;
+              index = -1;
+              continue;
+            }
+
+            var _state$orderedModifie = state.orderedModifiers[index],
+                fn = _state$orderedModifie.fn,
+                _state$orderedModifie2 = _state$orderedModifie.options,
+                _options = _state$orderedModifie2 === void 0 ? {} : _state$orderedModifie2,
+                name = _state$orderedModifie.name;
+
+            if (typeof fn === 'function') {
+              state = fn({
+                state: state,
+                options: _options,
+                name: name,
+                instance: instance
+              }) || state;
+            }
+          }
+        },
+        // Async and optimistically optimized update – it will not be executed if
+        // not necessary (debounced to run at most once-per-tick)
+        update: debounce(function () {
+          return new Promise(function (resolve) {
+            instance.forceUpdate();
+            resolve(state);
+          });
+        }),
+        destroy: function destroy() {
+          cleanupModifierEffects();
+          isDestroyed = true;
+        }
+      };
+
+      if (!areValidElements(reference, popper)) {
+        {
+          console.error(INVALID_ELEMENT_ERROR);
+        }
+
+        return instance;
+      }
+
+      instance.setOptions(options).then(function (state) {
+        if (!isDestroyed && options.onFirstUpdate) {
+          options.onFirstUpdate(state);
+        }
+      }); // Modifiers have the ability to execute arbitrary code before the first
+      // update cycle runs. They will be executed in the same order as the update
+      // cycle. This is useful when a modifier adds some persistent data that
+      // other modifiers need to use, but the modifier is run after the dependent
+      // one.
+
+      function runModifierEffects() {
+        state.orderedModifiers.forEach(function (_ref3) {
+          var name = _ref3.name,
+              _ref3$options = _ref3.options,
+              options = _ref3$options === void 0 ? {} : _ref3$options,
+              effect = _ref3.effect;
+
+          if (typeof effect === 'function') {
+            var cleanupFn = effect({
+              state: state,
+              name: name,
+              instance: instance,
+              options: options
+            });
+
+            var noopFn = function noopFn() {};
+
+            effectCleanupFns.push(cleanupFn || noopFn);
+          }
+        });
+      }
+
+      function cleanupModifierEffects() {
+        effectCleanupFns.forEach(function (fn) {
+          return fn();
+        });
+        effectCleanupFns = [];
+      }
+
+      return instance;
+    };
+  }
+  var createPopper = /*#__PURE__*/popperGenerator(); // eslint-disable-next-line import/no-unused-modules
+
+  exports.createPopper = createPopper;
+  exports.detectOverflow = detectOverflow;
+  exports.popperGenerator = popperGenerator;
+
+  Object.defineProperty(exports, '__esModule', { value: true });
+
+})));
+//# sourceMappingURL=popper-base.js.map