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454
test/node_modules/bootstrap/js/src/dropdown.js
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454
test/node_modules/bootstrap/js/src/dropdown.js
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/**
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* --------------------------------------------------------------------------
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* Bootstrap (v5.2.3): dropdown.js
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
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* --------------------------------------------------------------------------
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*/
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import * as Popper from '@popperjs/core'
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import {
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defineJQueryPlugin,
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getElement,
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getNextActiveElement,
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isDisabled,
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isElement,
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isRTL,
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isVisible,
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noop
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} from './util/index'
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import EventHandler from './dom/event-handler'
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import Manipulator from './dom/manipulator'
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import SelectorEngine from './dom/selector-engine'
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import BaseComponent from './base-component'
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/**
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* Constants
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*/
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const NAME = 'dropdown'
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const DATA_KEY = 'bs.dropdown'
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const EVENT_KEY = `.${DATA_KEY}`
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const DATA_API_KEY = '.data-api'
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const ESCAPE_KEY = 'Escape'
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const TAB_KEY = 'Tab'
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const ARROW_UP_KEY = 'ArrowUp'
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const ARROW_DOWN_KEY = 'ArrowDown'
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const RIGHT_MOUSE_BUTTON = 2 // MouseEvent.button value for the secondary button, usually the right button
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const EVENT_HIDE = `hide${EVENT_KEY}`
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const EVENT_HIDDEN = `hidden${EVENT_KEY}`
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const EVENT_SHOW = `show${EVENT_KEY}`
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const EVENT_SHOWN = `shown${EVENT_KEY}`
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const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`
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const EVENT_KEYDOWN_DATA_API = `keydown${EVENT_KEY}${DATA_API_KEY}`
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const EVENT_KEYUP_DATA_API = `keyup${EVENT_KEY}${DATA_API_KEY}`
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const CLASS_NAME_SHOW = 'show'
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const CLASS_NAME_DROPUP = 'dropup'
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const CLASS_NAME_DROPEND = 'dropend'
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const CLASS_NAME_DROPSTART = 'dropstart'
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const CLASS_NAME_DROPUP_CENTER = 'dropup-center'
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const CLASS_NAME_DROPDOWN_CENTER = 'dropdown-center'
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const SELECTOR_DATA_TOGGLE = '[data-bs-toggle="dropdown"]:not(.disabled):not(:disabled)'
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const SELECTOR_DATA_TOGGLE_SHOWN = `${SELECTOR_DATA_TOGGLE}.${CLASS_NAME_SHOW}`
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const SELECTOR_MENU = '.dropdown-menu'
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const SELECTOR_NAVBAR = '.navbar'
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const SELECTOR_NAVBAR_NAV = '.navbar-nav'
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const SELECTOR_VISIBLE_ITEMS = '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)'
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const PLACEMENT_TOP = isRTL() ? 'top-end' : 'top-start'
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const PLACEMENT_TOPEND = isRTL() ? 'top-start' : 'top-end'
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const PLACEMENT_BOTTOM = isRTL() ? 'bottom-end' : 'bottom-start'
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const PLACEMENT_BOTTOMEND = isRTL() ? 'bottom-start' : 'bottom-end'
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const PLACEMENT_RIGHT = isRTL() ? 'left-start' : 'right-start'
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const PLACEMENT_LEFT = isRTL() ? 'right-start' : 'left-start'
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const PLACEMENT_TOPCENTER = 'top'
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const PLACEMENT_BOTTOMCENTER = 'bottom'
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const Default = {
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autoClose: true,
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boundary: 'clippingParents',
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display: 'dynamic',
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offset: [0, 2],
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popperConfig: null,
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reference: 'toggle'
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}
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const DefaultType = {
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autoClose: '(boolean|string)',
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boundary: '(string|element)',
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display: 'string',
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offset: '(array|string|function)',
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popperConfig: '(null|object|function)',
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reference: '(string|element|object)'
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}
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/**
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* Class definition
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*/
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class Dropdown extends BaseComponent {
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constructor(element, config) {
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super(element, config)
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this._popper = null
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this._parent = this._element.parentNode // dropdown wrapper
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// todo: v6 revert #37011 & change markup https://getbootstrap.com/docs/5.2/forms/input-group/
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this._menu = SelectorEngine.next(this._element, SELECTOR_MENU)[0] ||
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SelectorEngine.prev(this._element, SELECTOR_MENU)[0] ||
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SelectorEngine.findOne(SELECTOR_MENU, this._parent)
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this._inNavbar = this._detectNavbar()
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}
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// Getters
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static get Default() {
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return Default
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}
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static get DefaultType() {
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return DefaultType
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}
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static get NAME() {
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return NAME
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}
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// Public
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toggle() {
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return this._isShown() ? this.hide() : this.show()
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}
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show() {
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if (isDisabled(this._element) || this._isShown()) {
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return
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}
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const relatedTarget = {
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relatedTarget: this._element
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}
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const showEvent = EventHandler.trigger(this._element, EVENT_SHOW, relatedTarget)
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if (showEvent.defaultPrevented) {
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return
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}
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this._createPopper()
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// If this is a touch-enabled device we add extra
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// empty mouseover listeners to the body's immediate children;
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// only needed because of broken event delegation on iOS
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// https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
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if ('ontouchstart' in document.documentElement && !this._parent.closest(SELECTOR_NAVBAR_NAV)) {
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for (const element of [].concat(...document.body.children)) {
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EventHandler.on(element, 'mouseover', noop)
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}
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}
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this._element.focus()
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this._element.setAttribute('aria-expanded', true)
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this._menu.classList.add(CLASS_NAME_SHOW)
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this._element.classList.add(CLASS_NAME_SHOW)
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EventHandler.trigger(this._element, EVENT_SHOWN, relatedTarget)
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}
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hide() {
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if (isDisabled(this._element) || !this._isShown()) {
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return
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}
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const relatedTarget = {
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relatedTarget: this._element
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}
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this._completeHide(relatedTarget)
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}
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dispose() {
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if (this._popper) {
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this._popper.destroy()
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}
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super.dispose()
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}
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update() {
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this._inNavbar = this._detectNavbar()
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if (this._popper) {
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this._popper.update()
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}
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}
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// Private
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_completeHide(relatedTarget) {
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const hideEvent = EventHandler.trigger(this._element, EVENT_HIDE, relatedTarget)
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if (hideEvent.defaultPrevented) {
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return
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}
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// If this is a touch-enabled device we remove the extra
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// empty mouseover listeners we added for iOS support
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if ('ontouchstart' in document.documentElement) {
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for (const element of [].concat(...document.body.children)) {
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EventHandler.off(element, 'mouseover', noop)
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}
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}
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if (this._popper) {
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this._popper.destroy()
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}
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this._menu.classList.remove(CLASS_NAME_SHOW)
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this._element.classList.remove(CLASS_NAME_SHOW)
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this._element.setAttribute('aria-expanded', 'false')
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Manipulator.removeDataAttribute(this._menu, 'popper')
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EventHandler.trigger(this._element, EVENT_HIDDEN, relatedTarget)
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}
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_getConfig(config) {
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config = super._getConfig(config)
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if (typeof config.reference === 'object' && !isElement(config.reference) &&
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typeof config.reference.getBoundingClientRect !== 'function'
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) {
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// Popper virtual elements require a getBoundingClientRect method
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throw new TypeError(`${NAME.toUpperCase()}: Option "reference" provided type "object" without a required "getBoundingClientRect" method.`)
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}
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return config
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}
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_createPopper() {
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if (typeof Popper === 'undefined') {
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throw new TypeError('Bootstrap\'s dropdowns require Popper (https://popper.js.org)')
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}
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let referenceElement = this._element
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if (this._config.reference === 'parent') {
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referenceElement = this._parent
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} else if (isElement(this._config.reference)) {
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referenceElement = getElement(this._config.reference)
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} else if (typeof this._config.reference === 'object') {
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referenceElement = this._config.reference
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}
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const popperConfig = this._getPopperConfig()
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this._popper = Popper.createPopper(referenceElement, this._menu, popperConfig)
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}
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_isShown() {
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return this._menu.classList.contains(CLASS_NAME_SHOW)
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}
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_getPlacement() {
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const parentDropdown = this._parent
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if (parentDropdown.classList.contains(CLASS_NAME_DROPEND)) {
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return PLACEMENT_RIGHT
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}
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if (parentDropdown.classList.contains(CLASS_NAME_DROPSTART)) {
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return PLACEMENT_LEFT
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}
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if (parentDropdown.classList.contains(CLASS_NAME_DROPUP_CENTER)) {
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return PLACEMENT_TOPCENTER
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}
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if (parentDropdown.classList.contains(CLASS_NAME_DROPDOWN_CENTER)) {
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return PLACEMENT_BOTTOMCENTER
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}
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// We need to trim the value because custom properties can also include spaces
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const isEnd = getComputedStyle(this._menu).getPropertyValue('--bs-position').trim() === 'end'
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if (parentDropdown.classList.contains(CLASS_NAME_DROPUP)) {
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return isEnd ? PLACEMENT_TOPEND : PLACEMENT_TOP
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}
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return isEnd ? PLACEMENT_BOTTOMEND : PLACEMENT_BOTTOM
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}
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_detectNavbar() {
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return this._element.closest(SELECTOR_NAVBAR) !== null
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}
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_getOffset() {
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const { offset } = this._config
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if (typeof offset === 'string') {
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return offset.split(',').map(value => Number.parseInt(value, 10))
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}
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if (typeof offset === 'function') {
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return popperData => offset(popperData, this._element)
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}
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return offset
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}
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_getPopperConfig() {
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const defaultBsPopperConfig = {
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placement: this._getPlacement(),
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modifiers: [{
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name: 'preventOverflow',
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options: {
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boundary: this._config.boundary
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}
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},
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{
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name: 'offset',
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options: {
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offset: this._getOffset()
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}
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}]
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}
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// Disable Popper if we have a static display or Dropdown is in Navbar
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if (this._inNavbar || this._config.display === 'static') {
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Manipulator.setDataAttribute(this._menu, 'popper', 'static') // todo:v6 remove
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defaultBsPopperConfig.modifiers = [{
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name: 'applyStyles',
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enabled: false
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}]
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}
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return {
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...defaultBsPopperConfig,
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...(typeof this._config.popperConfig === 'function' ? this._config.popperConfig(defaultBsPopperConfig) : this._config.popperConfig)
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}
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}
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_selectMenuItem({ key, target }) {
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const items = SelectorEngine.find(SELECTOR_VISIBLE_ITEMS, this._menu).filter(element => isVisible(element))
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if (!items.length) {
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return
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}
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// if target isn't included in items (e.g. when expanding the dropdown)
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// allow cycling to get the last item in case key equals ARROW_UP_KEY
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getNextActiveElement(items, target, key === ARROW_DOWN_KEY, !items.includes(target)).focus()
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}
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// Static
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static jQueryInterface(config) {
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return this.each(function () {
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const data = Dropdown.getOrCreateInstance(this, config)
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if (typeof config !== 'string') {
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return
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}
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if (typeof data[config] === 'undefined') {
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throw new TypeError(`No method named "${config}"`)
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}
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data[config]()
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})
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}
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static clearMenus(event) {
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if (event.button === RIGHT_MOUSE_BUTTON || (event.type === 'keyup' && event.key !== TAB_KEY)) {
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return
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}
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const openToggles = SelectorEngine.find(SELECTOR_DATA_TOGGLE_SHOWN)
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for (const toggle of openToggles) {
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const context = Dropdown.getInstance(toggle)
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if (!context || context._config.autoClose === false) {
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continue
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}
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const composedPath = event.composedPath()
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const isMenuTarget = composedPath.includes(context._menu)
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if (
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composedPath.includes(context._element) ||
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(context._config.autoClose === 'inside' && !isMenuTarget) ||
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(context._config.autoClose === 'outside' && isMenuTarget)
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) {
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continue
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}
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// Tab navigation through the dropdown menu or events from contained inputs shouldn't close the menu
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if (context._menu.contains(event.target) && ((event.type === 'keyup' && event.key === TAB_KEY) || /input|select|option|textarea|form/i.test(event.target.tagName))) {
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continue
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}
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const relatedTarget = { relatedTarget: context._element }
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if (event.type === 'click') {
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relatedTarget.clickEvent = event
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}
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context._completeHide(relatedTarget)
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}
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}
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static dataApiKeydownHandler(event) {
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// If not an UP | DOWN | ESCAPE key => not a dropdown command
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// If input/textarea && if key is other than ESCAPE => not a dropdown command
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const isInput = /input|textarea/i.test(event.target.tagName)
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const isEscapeEvent = event.key === ESCAPE_KEY
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const isUpOrDownEvent = [ARROW_UP_KEY, ARROW_DOWN_KEY].includes(event.key)
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if (!isUpOrDownEvent && !isEscapeEvent) {
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return
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}
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if (isInput && !isEscapeEvent) {
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return
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}
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event.preventDefault()
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// todo: v6 revert #37011 & change markup https://getbootstrap.com/docs/5.2/forms/input-group/
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const getToggleButton = this.matches(SELECTOR_DATA_TOGGLE) ?
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this :
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(SelectorEngine.prev(this, SELECTOR_DATA_TOGGLE)[0] ||
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SelectorEngine.next(this, SELECTOR_DATA_TOGGLE)[0] ||
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SelectorEngine.findOne(SELECTOR_DATA_TOGGLE, event.delegateTarget.parentNode))
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const instance = Dropdown.getOrCreateInstance(getToggleButton)
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if (isUpOrDownEvent) {
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event.stopPropagation()
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instance.show()
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instance._selectMenuItem(event)
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return
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}
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if (instance._isShown()) { // else is escape and we check if it is shown
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event.stopPropagation()
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instance.hide()
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getToggleButton.focus()
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}
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}
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}
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/**
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* Data API implementation
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*/
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EventHandler.on(document, EVENT_KEYDOWN_DATA_API, SELECTOR_DATA_TOGGLE, Dropdown.dataApiKeydownHandler)
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EventHandler.on(document, EVENT_KEYDOWN_DATA_API, SELECTOR_MENU, Dropdown.dataApiKeydownHandler)
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EventHandler.on(document, EVENT_CLICK_DATA_API, Dropdown.clearMenus)
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EventHandler.on(document, EVENT_KEYUP_DATA_API, Dropdown.clearMenus)
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EventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {
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event.preventDefault()
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Dropdown.getOrCreateInstance(this).toggle()
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})
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/**
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* jQuery
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||||
*/
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||||
defineJQueryPlugin(Dropdown)
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||||
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export default Dropdown
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