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/*!
* Bootstrap polyfill.js v5.0.0-alpha2 (https://getbootstrap.com/)
* Copyright 2011-2020 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.Polyfill = {}));
}(this, (function (exports) { 'use strict';
/**
* --------------------------------------------------------------------------
* Bootstrap (v5.0.0-alpha2): util/index.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
* --------------------------------------------------------------------------
*/
var MAX_UID = 1000000;
/**
* --------------------------------------------------------------------------
* Public Util Api
* --------------------------------------------------------------------------
*/
var getUID = function getUID(prefix) {
do {
prefix += Math.floor(Math.random() * MAX_UID);
} while (document.getElementById(prefix));
return prefix;
};
/* istanbul ignore file */
exports.find = Element.prototype.querySelectorAll;
exports.findOne = Element.prototype.querySelector; // MSEdge resets defaultPrevented flag upon dispatchEvent call if at least one listener is attached
var defaultPreventedPreservedOnDispatch = function () {
var e = new CustomEvent('Bootstrap', {
cancelable: true
});
var element = document.createElement('div');
element.addEventListener('Bootstrap', function () {
return null;
});
e.preventDefault();
element.dispatchEvent(e);
return e.defaultPrevented;
}();
var scopeSelectorRegex = /:scope\b/;
var supportScopeQuery = function () {
var element = document.createElement('div');
try {
element.querySelectorAll(':scope *');
} catch (_) {
return false;
}
return true;
}();
if (!supportScopeQuery) {
exports.find = function find(selector) {
if (!scopeSelectorRegex.test(selector)) {
return this.querySelectorAll(selector);
}
var hasId = Boolean(this.id);
if (!hasId) {
this.id = getUID('scope');
}
var nodeList = null;
try {
selector = selector.replace(scopeSelectorRegex, "#" + this.id);
nodeList = this.querySelectorAll(selector);
} finally {
if (!hasId) {
this.removeAttribute('id');
}
}
return nodeList;
};
exports.findOne = function findOne(selector) {
if (!scopeSelectorRegex.test(selector)) {
return this.querySelector(selector);
}
var matches = exports.find.call(this, selector);
if (typeof matches[0] !== 'undefined') {
return matches[0];
}
return null;
};
}
exports.defaultPreventedPreservedOnDispatch = defaultPreventedPreservedOnDispatch;
Object.defineProperty(exports, '__esModule', { value: true });
})));
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