{
"version": 3,
"sources": ["../../../../node_modules/@rails/ujs/lib/assets/compiled/rails-ujs.js", "../../../../node_modules/events/events.js", "../../../../node_modules/intersection-observer/intersection-observer.js", "../../../javascript/shared/common.js", "../../../../node_modules/@carwow/carwow_theme/app/javascript/elm_google_translate.js", "../../../../node_modules/@ungap/custom-elements/index.js", "../../../../node_modules/@carwow/carwow_theme/app/javascript/components/header.js", "../../../../node_modules/@carwow/carwow_theme/app/javascript/event_bus.js", "../../../../node_modules/@carwow/carwow_theme/app/javascript/components/remote_content.js", "../../../../node_modules/@carwow/carwow_theme/app/javascript/components/lazy_svg_sprite.js", "../../../../node_modules/body-scroll-lock/lib/bodyScrollLock.esm.js", "../../../../node_modules/@carwow/carwow_theme/app/javascript/components/modal.js", "../../../../node_modules/@carwow/carwow_theme/app/javascript/theme_common.js", "../../../../node_modules/@carwow/carwow_theme/app/javascript/doc_cookies.js", "../../../javascript/shared/referrer_tracking.js", "../../../javascript/shared/lazy_srcset.js"],
"sourcesContent": ["/*\nUnobtrusive JavaScript\nhttps://github.com/rails/rails/blob/main/actionview/app/assets/javascripts\nReleased under the MIT license\n */;\n\n(function() {\n var context = this;\n\n (function() {\n (function() {\n this.Rails = {\n linkClickSelector: 'a[data-confirm], a[data-method], a[data-remote]:not([disabled]), a[data-disable-with], a[data-disable]',\n buttonClickSelector: {\n selector: 'button[data-remote]:not([form]), button[data-confirm]:not([form])',\n exclude: 'form button'\n },\n inputChangeSelector: 'select[data-remote], input[data-remote], textarea[data-remote]',\n formSubmitSelector: 'form:not([data-turbo=true])',\n formInputClickSelector: 'form:not([data-turbo=true]) input[type=submit], form:not([data-turbo=true]) input[type=image], form:not([data-turbo=true]) button[type=submit], form:not([data-turbo=true]) button:not([type]), input[type=submit][form], input[type=image][form], button[type=submit][form], button[form]:not([type])',\n formDisableSelector: 'input[data-disable-with]:enabled, button[data-disable-with]:enabled, textarea[data-disable-with]:enabled, input[data-disable]:enabled, button[data-disable]:enabled, textarea[data-disable]:enabled',\n formEnableSelector: 'input[data-disable-with]:disabled, button[data-disable-with]:disabled, textarea[data-disable-with]:disabled, input[data-disable]:disabled, button[data-disable]:disabled, textarea[data-disable]:disabled',\n fileInputSelector: 'input[name][type=file]:not([disabled])',\n linkDisableSelector: 'a[data-disable-with], a[data-disable]',\n buttonDisableSelector: 'button[data-remote][data-disable-with], button[data-remote][data-disable]'\n };\n\n }).call(this);\n }).call(context);\n\n var Rails = context.Rails;\n\n (function() {\n (function() {\n var nonce;\n\n nonce = null;\n\n Rails.loadCSPNonce = function() {\n var ref;\n return nonce = (ref = document.querySelector(\"meta[name=csp-nonce]\")) != null ? ref.content : void 0;\n };\n\n Rails.cspNonce = function() {\n return nonce != null ? nonce : Rails.loadCSPNonce();\n };\n\n }).call(this);\n (function() {\n var expando, m;\n\n m = Element.prototype.matches || Element.prototype.matchesSelector || Element.prototype.mozMatchesSelector || Element.prototype.msMatchesSelector || Element.prototype.oMatchesSelector || Element.prototype.webkitMatchesSelector;\n\n Rails.matches = function(element, selector) {\n if (selector.exclude != null) {\n return m.call(element, selector.selector) && !m.call(element, selector.exclude);\n } else {\n return m.call(element, selector);\n }\n };\n\n expando = '_ujsData';\n\n Rails.getData = function(element, key) {\n var ref;\n return (ref = element[expando]) != null ? ref[key] : void 0;\n };\n\n Rails.setData = function(element, key, value) {\n if (element[expando] == null) {\n element[expando] = {};\n }\n return element[expando][key] = value;\n };\n\n Rails.isContentEditable = function(element) {\n var isEditable;\n isEditable = false;\n while (true) {\n if (element.isContentEditable) {\n isEditable = true;\n break;\n }\n element = element.parentElement;\n if (!element) {\n break;\n }\n }\n return isEditable;\n };\n\n Rails.$ = function(selector) {\n return Array.prototype.slice.call(document.querySelectorAll(selector));\n };\n\n }).call(this);\n (function() {\n var $, csrfParam, csrfToken;\n\n $ = Rails.$;\n\n csrfToken = Rails.csrfToken = function() {\n var meta;\n meta = document.querySelector('meta[name=csrf-token]');\n return meta && meta.content;\n };\n\n csrfParam = Rails.csrfParam = function() {\n var meta;\n meta = document.querySelector('meta[name=csrf-param]');\n return meta && meta.content;\n };\n\n Rails.CSRFProtection = function(xhr) {\n var token;\n token = csrfToken();\n if (token != null) {\n return xhr.setRequestHeader('X-CSRF-Token', token);\n }\n };\n\n Rails.refreshCSRFTokens = function() {\n var param, token;\n token = csrfToken();\n param = csrfParam();\n if ((token != null) && (param != null)) {\n return $('form input[name=\"' + param + '\"]').forEach(function(input) {\n return input.value = token;\n });\n }\n };\n\n }).call(this);\n (function() {\n var CustomEvent, fire, matches, preventDefault;\n\n matches = Rails.matches;\n\n CustomEvent = window.CustomEvent;\n\n if (typeof CustomEvent !== 'function') {\n CustomEvent = function(event, params) {\n var evt;\n evt = document.createEvent('CustomEvent');\n evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);\n return evt;\n };\n CustomEvent.prototype = window.Event.prototype;\n preventDefault = CustomEvent.prototype.preventDefault;\n CustomEvent.prototype.preventDefault = function() {\n var result;\n result = preventDefault.call(this);\n if (this.cancelable && !this.defaultPrevented) {\n Object.defineProperty(this, 'defaultPrevented', {\n get: function() {\n return true;\n }\n });\n }\n return result;\n };\n }\n\n fire = Rails.fire = function(obj, name, data) {\n var event;\n event = new CustomEvent(name, {\n bubbles: true,\n cancelable: true,\n detail: data\n });\n obj.dispatchEvent(event);\n return !event.defaultPrevented;\n };\n\n Rails.stopEverything = function(e) {\n fire(e.target, 'ujs:everythingStopped');\n e.preventDefault();\n e.stopPropagation();\n return e.stopImmediatePropagation();\n };\n\n Rails.delegate = function(element, selector, eventType, handler) {\n return element.addEventListener(eventType, function(e) {\n var target;\n target = e.target;\n while (!(!(target instanceof Element) || matches(target, selector))) {\n target = target.parentNode;\n }\n if (target instanceof Element && handler.call(target, e) === false) {\n e.preventDefault();\n return e.stopPropagation();\n }\n });\n };\n\n }).call(this);\n (function() {\n var AcceptHeaders, CSRFProtection, createXHR, cspNonce, fire, prepareOptions, processResponse;\n\n cspNonce = Rails.cspNonce, CSRFProtection = Rails.CSRFProtection, fire = Rails.fire;\n\n AcceptHeaders = {\n '*': '*/*',\n text: 'text/plain',\n html: 'text/html',\n xml: 'application/xml, text/xml',\n json: 'application/json, text/javascript',\n script: 'text/javascript, application/javascript, application/ecmascript, application/x-ecmascript'\n };\n\n Rails.ajax = function(options) {\n var xhr;\n options = prepareOptions(options);\n xhr = createXHR(options, function() {\n var ref, response;\n response = processResponse((ref = xhr.response) != null ? ref : xhr.responseText, xhr.getResponseHeader('Content-Type'));\n if (Math.floor(xhr.status / 100) === 2) {\n if (typeof options.success === \"function\") {\n options.success(response, xhr.statusText, xhr);\n }\n } else {\n if (typeof options.error === \"function\") {\n options.error(response, xhr.statusText, xhr);\n }\n }\n return typeof options.complete === \"function\" ? options.complete(xhr, xhr.statusText) : void 0;\n });\n if ((options.beforeSend != null) && !options.beforeSend(xhr, options)) {\n return false;\n }\n if (xhr.readyState === XMLHttpRequest.OPENED) {\n return xhr.send(options.data);\n }\n };\n\n prepareOptions = function(options) {\n options.url = options.url || location.href;\n options.type = options.type.toUpperCase();\n if (options.type === 'GET' && options.data) {\n if (options.url.indexOf('?') < 0) {\n options.url += '?' + options.data;\n } else {\n options.url += '&' + options.data;\n }\n }\n if (AcceptHeaders[options.dataType] == null) {\n options.dataType = '*';\n }\n options.accept = AcceptHeaders[options.dataType];\n if (options.dataType !== '*') {\n options.accept += ', */*; q=0.01';\n }\n return options;\n };\n\n createXHR = function(options, done) {\n var xhr;\n xhr = new XMLHttpRequest();\n xhr.open(options.type, options.url, true);\n xhr.setRequestHeader('Accept', options.accept);\n if (typeof options.data === 'string') {\n xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');\n }\n if (!options.crossDomain) {\n xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');\n CSRFProtection(xhr);\n }\n xhr.withCredentials = !!options.withCredentials;\n xhr.onreadystatechange = function() {\n if (xhr.readyState === XMLHttpRequest.DONE) {\n return done(xhr);\n }\n };\n return xhr;\n };\n\n processResponse = function(response, type) {\n var parser, script;\n if (typeof response === 'string' && typeof type === 'string') {\n if (type.match(/\\bjson\\b/)) {\n try {\n response = JSON.parse(response);\n } catch (error) {}\n } else if (type.match(/\\b(?:java|ecma)script\\b/)) {\n script = document.createElement('script');\n script.setAttribute('nonce', cspNonce());\n script.text = response;\n document.head.appendChild(script).parentNode.removeChild(script);\n } else if (type.match(/\\b(xml|html|svg)\\b/)) {\n parser = new DOMParser();\n type = type.replace(/;.+/, '');\n try {\n response = parser.parseFromString(response, type);\n } catch (error) {}\n }\n }\n return response;\n };\n\n Rails.href = function(element) {\n return element.href;\n };\n\n Rails.isCrossDomain = function(url) {\n var e, originAnchor, urlAnchor;\n originAnchor = document.createElement('a');\n originAnchor.href = location.href;\n urlAnchor = document.createElement('a');\n try {\n urlAnchor.href = url;\n return !(((!urlAnchor.protocol || urlAnchor.protocol === ':') && !urlAnchor.host) || (originAnchor.protocol + '//' + originAnchor.host === urlAnchor.protocol + '//' + urlAnchor.host));\n } catch (error) {\n e = error;\n return true;\n }\n };\n\n }).call(this);\n (function() {\n var matches, toArray;\n\n matches = Rails.matches;\n\n toArray = function(e) {\n return Array.prototype.slice.call(e);\n };\n\n Rails.serializeElement = function(element, additionalParam) {\n var inputs, params;\n inputs = [element];\n if (matches(element, 'form')) {\n inputs = toArray(element.elements);\n }\n params = [];\n inputs.forEach(function(input) {\n if (!input.name || input.disabled) {\n return;\n }\n if (matches(input, 'fieldset[disabled] *')) {\n return;\n }\n if (matches(input, 'select')) {\n return toArray(input.options).forEach(function(option) {\n if (option.selected) {\n return params.push({\n name: input.name,\n value: option.value\n });\n }\n });\n } else if (input.checked || ['radio', 'checkbox', 'submit'].indexOf(input.type) === -1) {\n return params.push({\n name: input.name,\n value: input.value\n });\n }\n });\n if (additionalParam) {\n params.push(additionalParam);\n }\n return params.map(function(param) {\n if (param.name != null) {\n return (encodeURIComponent(param.name)) + \"=\" + (encodeURIComponent(param.value));\n } else {\n return param;\n }\n }).join('&');\n };\n\n Rails.formElements = function(form, selector) {\n if (matches(form, 'form')) {\n return toArray(form.elements).filter(function(el) {\n return matches(el, selector);\n });\n } else {\n return toArray(form.querySelectorAll(selector));\n }\n };\n\n }).call(this);\n (function() {\n var allowAction, fire, stopEverything;\n\n fire = Rails.fire, stopEverything = Rails.stopEverything;\n\n Rails.handleConfirm = function(e) {\n if (!allowAction(this)) {\n return stopEverything(e);\n }\n };\n\n Rails.confirm = function(message, element) {\n return confirm(message);\n };\n\n allowAction = function(element) {\n var answer, callback, message;\n message = element.getAttribute('data-confirm');\n if (!message) {\n return true;\n }\n answer = false;\n if (fire(element, 'confirm')) {\n try {\n answer = Rails.confirm(message, element);\n } catch (error) {}\n callback = fire(element, 'confirm:complete', [answer]);\n }\n return answer && callback;\n };\n\n }).call(this);\n (function() {\n var disableFormElement, disableFormElements, disableLinkElement, enableFormElement, enableFormElements, enableLinkElement, formElements, getData, isContentEditable, isXhrRedirect, matches, setData, stopEverything;\n\n matches = Rails.matches, getData = Rails.getData, setData = Rails.setData, stopEverything = Rails.stopEverything, formElements = Rails.formElements, isContentEditable = Rails.isContentEditable;\n\n Rails.handleDisabledElement = function(e) {\n var element;\n element = this;\n if (element.disabled) {\n return stopEverything(e);\n }\n };\n\n Rails.enableElement = function(e) {\n var element;\n if (e instanceof Event) {\n if (isXhrRedirect(e)) {\n return;\n }\n element = e.target;\n } else {\n element = e;\n }\n if (isContentEditable(element)) {\n return;\n }\n if (matches(element, Rails.linkDisableSelector)) {\n return enableLinkElement(element);\n } else if (matches(element, Rails.buttonDisableSelector) || matches(element, Rails.formEnableSelector)) {\n return enableFormElement(element);\n } else if (matches(element, Rails.formSubmitSelector)) {\n return enableFormElements(element);\n }\n };\n\n Rails.disableElement = function(e) {\n var element;\n element = e instanceof Event ? e.target : e;\n if (isContentEditable(element)) {\n return;\n }\n if (matches(element, Rails.linkDisableSelector)) {\n return disableLinkElement(element);\n } else if (matches(element, Rails.buttonDisableSelector) || matches(element, Rails.formDisableSelector)) {\n return disableFormElement(element);\n } else if (matches(element, Rails.formSubmitSelector)) {\n return disableFormElements(element);\n }\n };\n\n disableLinkElement = function(element) {\n var replacement;\n if (getData(element, 'ujs:disabled')) {\n return;\n }\n replacement = element.getAttribute('data-disable-with');\n if (replacement != null) {\n setData(element, 'ujs:enable-with', element.innerHTML);\n element.innerHTML = replacement;\n }\n element.addEventListener('click', stopEverything);\n return setData(element, 'ujs:disabled', true);\n };\n\n enableLinkElement = function(element) {\n var originalText;\n originalText = getData(element, 'ujs:enable-with');\n if (originalText != null) {\n element.innerHTML = originalText;\n setData(element, 'ujs:enable-with', null);\n }\n element.removeEventListener('click', stopEverything);\n return setData(element, 'ujs:disabled', null);\n };\n\n disableFormElements = function(form) {\n return formElements(form, Rails.formDisableSelector).forEach(disableFormElement);\n };\n\n disableFormElement = function(element) {\n var replacement;\n if (getData(element, 'ujs:disabled')) {\n return;\n }\n replacement = element.getAttribute('data-disable-with');\n if (replacement != null) {\n if (matches(element, 'button')) {\n setData(element, 'ujs:enable-with', element.innerHTML);\n element.innerHTML = replacement;\n } else {\n setData(element, 'ujs:enable-with', element.value);\n element.value = replacement;\n }\n }\n element.disabled = true;\n return setData(element, 'ujs:disabled', true);\n };\n\n enableFormElements = function(form) {\n return formElements(form, Rails.formEnableSelector).forEach(enableFormElement);\n };\n\n enableFormElement = function(element) {\n var originalText;\n originalText = getData(element, 'ujs:enable-with');\n if (originalText != null) {\n if (matches(element, 'button')) {\n element.innerHTML = originalText;\n } else {\n element.value = originalText;\n }\n setData(element, 'ujs:enable-with', null);\n }\n element.disabled = false;\n return setData(element, 'ujs:disabled', null);\n };\n\n isXhrRedirect = function(event) {\n var ref, xhr;\n xhr = (ref = event.detail) != null ? ref[0] : void 0;\n return (xhr != null ? xhr.getResponseHeader(\"X-Xhr-Redirect\") : void 0) != null;\n };\n\n }).call(this);\n (function() {\n var isContentEditable, stopEverything;\n\n stopEverything = Rails.stopEverything;\n\n isContentEditable = Rails.isContentEditable;\n\n Rails.handleMethod = function(e) {\n var csrfParam, csrfToken, form, formContent, href, link, method;\n link = this;\n method = link.getAttribute('data-method');\n if (!method) {\n return;\n }\n if (isContentEditable(this)) {\n return;\n }\n href = Rails.href(link);\n csrfToken = Rails.csrfToken();\n csrfParam = Rails.csrfParam();\n form = document.createElement('form');\n formContent = \"\";\n if ((csrfParam != null) && (csrfToken != null) && !Rails.isCrossDomain(href)) {\n formContent += \"\";\n }\n formContent += '';\n form.method = 'post';\n form.action = href;\n form.target = link.target;\n form.innerHTML = formContent;\n form.style.display = 'none';\n document.body.appendChild(form);\n form.querySelector('[type=\"submit\"]').click();\n return stopEverything(e);\n };\n\n }).call(this);\n (function() {\n var ajax, fire, getData, isContentEditable, isCrossDomain, isRemote, matches, serializeElement, setData, stopEverything,\n slice = [].slice;\n\n matches = Rails.matches, getData = Rails.getData, setData = Rails.setData, fire = Rails.fire, stopEverything = Rails.stopEverything, ajax = Rails.ajax, isCrossDomain = Rails.isCrossDomain, serializeElement = Rails.serializeElement, isContentEditable = Rails.isContentEditable;\n\n isRemote = function(element) {\n var value;\n value = element.getAttribute('data-remote');\n return (value != null) && value !== 'false';\n };\n\n Rails.handleRemote = function(e) {\n var button, data, dataType, element, method, url, withCredentials;\n element = this;\n if (!isRemote(element)) {\n return true;\n }\n if (!fire(element, 'ajax:before')) {\n fire(element, 'ajax:stopped');\n return false;\n }\n if (isContentEditable(element)) {\n fire(element, 'ajax:stopped');\n return false;\n }\n withCredentials = element.getAttribute('data-with-credentials');\n dataType = element.getAttribute('data-type') || 'script';\n if (matches(element, Rails.formSubmitSelector)) {\n button = getData(element, 'ujs:submit-button');\n method = getData(element, 'ujs:submit-button-formmethod') || element.method;\n url = getData(element, 'ujs:submit-button-formaction') || element.getAttribute('action') || location.href;\n if (method.toUpperCase() === 'GET') {\n url = url.replace(/\\?.*$/, '');\n }\n if (element.enctype === 'multipart/form-data') {\n data = new FormData(element);\n if (button != null) {\n data.append(button.name, button.value);\n }\n } else {\n data = serializeElement(element, button);\n }\n setData(element, 'ujs:submit-button', null);\n setData(element, 'ujs:submit-button-formmethod', null);\n setData(element, 'ujs:submit-button-formaction', null);\n } else if (matches(element, Rails.buttonClickSelector) || matches(element, Rails.inputChangeSelector)) {\n method = element.getAttribute('data-method');\n url = element.getAttribute('data-url');\n data = serializeElement(element, element.getAttribute('data-params'));\n } else {\n method = element.getAttribute('data-method');\n url = Rails.href(element);\n data = element.getAttribute('data-params');\n }\n ajax({\n type: method || 'GET',\n url: url,\n data: data,\n dataType: dataType,\n beforeSend: function(xhr, options) {\n if (fire(element, 'ajax:beforeSend', [xhr, options])) {\n return fire(element, 'ajax:send', [xhr]);\n } else {\n fire(element, 'ajax:stopped');\n return false;\n }\n },\n success: function() {\n var args;\n args = 1 <= arguments.length ? slice.call(arguments, 0) : [];\n return fire(element, 'ajax:success', args);\n },\n error: function() {\n var args;\n args = 1 <= arguments.length ? slice.call(arguments, 0) : [];\n return fire(element, 'ajax:error', args);\n },\n complete: function() {\n var args;\n args = 1 <= arguments.length ? slice.call(arguments, 0) : [];\n return fire(element, 'ajax:complete', args);\n },\n crossDomain: isCrossDomain(url),\n withCredentials: (withCredentials != null) && withCredentials !== 'false'\n });\n return stopEverything(e);\n };\n\n Rails.formSubmitButtonClick = function(e) {\n var button, form;\n button = this;\n form = button.form;\n if (!form) {\n return;\n }\n if (button.name) {\n setData(form, 'ujs:submit-button', {\n name: button.name,\n value: button.value\n });\n }\n setData(form, 'ujs:formnovalidate-button', button.formNoValidate);\n setData(form, 'ujs:submit-button-formaction', button.getAttribute('formaction'));\n return setData(form, 'ujs:submit-button-formmethod', button.getAttribute('formmethod'));\n };\n\n Rails.preventInsignificantClick = function(e) {\n var data, insignificantMetaClick, link, metaClick, method, nonPrimaryMouseClick;\n link = this;\n method = (link.getAttribute('data-method') || 'GET').toUpperCase();\n data = link.getAttribute('data-params');\n metaClick = e.metaKey || e.ctrlKey;\n insignificantMetaClick = metaClick && method === 'GET' && !data;\n nonPrimaryMouseClick = (e.button != null) && e.button !== 0;\n if (nonPrimaryMouseClick || insignificantMetaClick) {\n return e.stopImmediatePropagation();\n }\n };\n\n }).call(this);\n (function() {\n var $, CSRFProtection, delegate, disableElement, enableElement, fire, formSubmitButtonClick, getData, handleConfirm, handleDisabledElement, handleMethod, handleRemote, loadCSPNonce, preventInsignificantClick, refreshCSRFTokens;\n\n fire = Rails.fire, delegate = Rails.delegate, getData = Rails.getData, $ = Rails.$, refreshCSRFTokens = Rails.refreshCSRFTokens, CSRFProtection = Rails.CSRFProtection, loadCSPNonce = Rails.loadCSPNonce, enableElement = Rails.enableElement, disableElement = Rails.disableElement, handleDisabledElement = Rails.handleDisabledElement, handleConfirm = Rails.handleConfirm, preventInsignificantClick = Rails.preventInsignificantClick, handleRemote = Rails.handleRemote, formSubmitButtonClick = Rails.formSubmitButtonClick, handleMethod = Rails.handleMethod;\n\n if ((typeof jQuery !== \"undefined\" && jQuery !== null) && (jQuery.ajax != null)) {\n if (jQuery.rails) {\n throw new Error('If you load both jquery_ujs and rails-ujs, use rails-ujs only.');\n }\n jQuery.rails = Rails;\n jQuery.ajaxPrefilter(function(options, originalOptions, xhr) {\n if (!options.crossDomain) {\n return CSRFProtection(xhr);\n }\n });\n }\n\n Rails.start = function() {\n if (window._rails_loaded) {\n throw new Error('rails-ujs has already been loaded!');\n }\n window.addEventListener('pageshow', function() {\n $(Rails.formEnableSelector).forEach(function(el) {\n if (getData(el, 'ujs:disabled')) {\n return enableElement(el);\n }\n });\n return $(Rails.linkDisableSelector).forEach(function(el) {\n if (getData(el, 'ujs:disabled')) {\n return enableElement(el);\n }\n });\n });\n delegate(document, Rails.linkDisableSelector, 'ajax:complete', enableElement);\n delegate(document, Rails.linkDisableSelector, 'ajax:stopped', enableElement);\n delegate(document, Rails.buttonDisableSelector, 'ajax:complete', enableElement);\n delegate(document, Rails.buttonDisableSelector, 'ajax:stopped', enableElement);\n delegate(document, Rails.linkClickSelector, 'click', preventInsignificantClick);\n delegate(document, Rails.linkClickSelector, 'click', handleDisabledElement);\n delegate(document, Rails.linkClickSelector, 'click', handleConfirm);\n delegate(document, Rails.linkClickSelector, 'click', disableElement);\n delegate(document, Rails.linkClickSelector, 'click', handleRemote);\n delegate(document, Rails.linkClickSelector, 'click', handleMethod);\n delegate(document, Rails.buttonClickSelector, 'click', preventInsignificantClick);\n delegate(document, Rails.buttonClickSelector, 'click', handleDisabledElement);\n delegate(document, Rails.buttonClickSelector, 'click', handleConfirm);\n delegate(document, Rails.buttonClickSelector, 'click', disableElement);\n delegate(document, Rails.buttonClickSelector, 'click', handleRemote);\n delegate(document, Rails.inputChangeSelector, 'change', handleDisabledElement);\n delegate(document, Rails.inputChangeSelector, 'change', handleConfirm);\n delegate(document, Rails.inputChangeSelector, 'change', handleRemote);\n delegate(document, Rails.formSubmitSelector, 'submit', handleDisabledElement);\n delegate(document, Rails.formSubmitSelector, 'submit', handleConfirm);\n delegate(document, Rails.formSubmitSelector, 'submit', handleRemote);\n delegate(document, Rails.formSubmitSelector, 'submit', function(e) {\n return setTimeout((function() {\n return disableElement(e);\n }), 13);\n });\n delegate(document, Rails.formSubmitSelector, 'ajax:send', disableElement);\n delegate(document, Rails.formSubmitSelector, 'ajax:complete', enableElement);\n delegate(document, Rails.formInputClickSelector, 'click', preventInsignificantClick);\n delegate(document, Rails.formInputClickSelector, 'click', handleDisabledElement);\n delegate(document, Rails.formInputClickSelector, 'click', handleConfirm);\n delegate(document, Rails.formInputClickSelector, 'click', formSubmitButtonClick);\n document.addEventListener('DOMContentLoaded', refreshCSRFTokens);\n document.addEventListener('DOMContentLoaded', loadCSPNonce);\n return window._rails_loaded = true;\n };\n\n if (window.Rails === Rails && fire(document, 'rails:attachBindings')) {\n Rails.start();\n }\n\n }).call(this);\n }).call(this);\n\n if (typeof module === \"object\" && module.exports) {\n module.exports = Rails;\n } else if (typeof define === \"function\" && define.amd) {\n define(Rails);\n }\n}).call(this);\n", "// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nvar R = typeof Reflect === 'object' ? Reflect : null\nvar ReflectApply = R && typeof R.apply === 'function'\n ? R.apply\n : function ReflectApply(target, receiver, args) {\n return Function.prototype.apply.call(target, receiver, args);\n }\n\nvar ReflectOwnKeys\nif (R && typeof R.ownKeys === 'function') {\n ReflectOwnKeys = R.ownKeys\n} else if (Object.getOwnPropertySymbols) {\n ReflectOwnKeys = function ReflectOwnKeys(target) {\n return Object.getOwnPropertyNames(target)\n .concat(Object.getOwnPropertySymbols(target));\n };\n} else {\n ReflectOwnKeys = function ReflectOwnKeys(target) {\n return Object.getOwnPropertyNames(target);\n };\n}\n\nfunction ProcessEmitWarning(warning) {\n if (console && console.warn) console.warn(warning);\n}\n\nvar NumberIsNaN = Number.isNaN || function NumberIsNaN(value) {\n return value !== value;\n}\n\nfunction EventEmitter() {\n EventEmitter.init.call(this);\n}\nmodule.exports = EventEmitter;\nmodule.exports.once = once;\n\n// Backwards-compat with node 0.10.x\nEventEmitter.EventEmitter = EventEmitter;\n\nEventEmitter.prototype._events = undefined;\nEventEmitter.prototype._eventsCount = 0;\nEventEmitter.prototype._maxListeners = undefined;\n\n// By default EventEmitters will print a warning if more than 10 listeners are\n// added to it. This is a useful default which helps finding memory leaks.\nvar defaultMaxListeners = 10;\n\nfunction checkListener(listener) {\n if (typeof listener !== 'function') {\n throw new TypeError('The \"listener\" argument must be of type Function. Received type ' + typeof listener);\n }\n}\n\nObject.defineProperty(EventEmitter, 'defaultMaxListeners', {\n enumerable: true,\n get: function() {\n return defaultMaxListeners;\n },\n set: function(arg) {\n if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) {\n throw new RangeError('The value of \"defaultMaxListeners\" is out of range. It must be a non-negative number. Received ' + arg + '.');\n }\n defaultMaxListeners = arg;\n }\n});\n\nEventEmitter.init = function() {\n\n if (this._events === undefined ||\n this._events === Object.getPrototypeOf(this)._events) {\n this._events = Object.create(null);\n this._eventsCount = 0;\n }\n\n this._maxListeners = this._maxListeners || undefined;\n};\n\n// Obviously not all Emitters should be limited to 10. This function allows\n// that to be increased. Set to zero for unlimited.\nEventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {\n if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) {\n throw new RangeError('The value of \"n\" is out of range. It must be a non-negative number. Received ' + n + '.');\n }\n this._maxListeners = n;\n return this;\n};\n\nfunction _getMaxListeners(that) {\n if (that._maxListeners === undefined)\n return EventEmitter.defaultMaxListeners;\n return that._maxListeners;\n}\n\nEventEmitter.prototype.getMaxListeners = function getMaxListeners() {\n return _getMaxListeners(this);\n};\n\nEventEmitter.prototype.emit = function emit(type) {\n var args = [];\n for (var i = 1; i < arguments.length; i++) args.push(arguments[i]);\n var doError = (type === 'error');\n\n var events = this._events;\n if (events !== undefined)\n doError = (doError && events.error === undefined);\n else if (!doError)\n return false;\n\n // If there is no 'error' event listener then throw.\n if (doError) {\n var er;\n if (args.length > 0)\n er = args[0];\n if (er instanceof Error) {\n // Note: The comments on the `throw` lines are intentional, they show\n // up in Node's output if this results in an unhandled exception.\n throw er; // Unhandled 'error' event\n }\n // At least give some kind of context to the user\n var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : ''));\n err.context = er;\n throw err; // Unhandled 'error' event\n }\n\n var handler = events[type];\n\n if (handler === undefined)\n return false;\n\n if (typeof handler === 'function') {\n ReflectApply(handler, this, args);\n } else {\n var len = handler.length;\n var listeners = arrayClone(handler, len);\n for (var i = 0; i < len; ++i)\n ReflectApply(listeners[i], this, args);\n }\n\n return true;\n};\n\nfunction _addListener(target, type, listener, prepend) {\n var m;\n var events;\n var existing;\n\n checkListener(listener);\n\n events = target._events;\n if (events === undefined) {\n events = target._events = Object.create(null);\n target._eventsCount = 0;\n } else {\n // To avoid recursion in the case that type === \"newListener\"! Before\n // adding it to the listeners, first emit \"newListener\".\n if (events.newListener !== undefined) {\n target.emit('newListener', type,\n listener.listener ? listener.listener : listener);\n\n // Re-assign `events` because a newListener handler could have caused the\n // this._events to be assigned to a new object\n events = target._events;\n }\n existing = events[type];\n }\n\n if (existing === undefined) {\n // Optimize the case of one listener. Don't need the extra array object.\n existing = events[type] = listener;\n ++target._eventsCount;\n } else {\n if (typeof existing === 'function') {\n // Adding the second element, need to change to array.\n existing = events[type] =\n prepend ? [listener, existing] : [existing, listener];\n // If we've already got an array, just append.\n } else if (prepend) {\n existing.unshift(listener);\n } else {\n existing.push(listener);\n }\n\n // Check for listener leak\n m = _getMaxListeners(target);\n if (m > 0 && existing.length > m && !existing.warned) {\n existing.warned = true;\n // No error code for this since it is a Warning\n // eslint-disable-next-line no-restricted-syntax\n var w = new Error('Possible EventEmitter memory leak detected. ' +\n existing.length + ' ' + String(type) + ' listeners ' +\n 'added. Use emitter.setMaxListeners() to ' +\n 'increase limit');\n w.name = 'MaxListenersExceededWarning';\n w.emitter = target;\n w.type = type;\n w.count = existing.length;\n ProcessEmitWarning(w);\n }\n }\n\n return target;\n}\n\nEventEmitter.prototype.addListener = function addListener(type, listener) {\n return _addListener(this, type, listener, false);\n};\n\nEventEmitter.prototype.on = EventEmitter.prototype.addListener;\n\nEventEmitter.prototype.prependListener =\n function prependListener(type, listener) {\n return _addListener(this, type, listener, true);\n };\n\nfunction onceWrapper() {\n if (!this.fired) {\n this.target.removeListener(this.type, this.wrapFn);\n this.fired = true;\n if (arguments.length === 0)\n return this.listener.call(this.target);\n return this.listener.apply(this.target, arguments);\n }\n}\n\nfunction _onceWrap(target, type, listener) {\n var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };\n var wrapped = onceWrapper.bind(state);\n wrapped.listener = listener;\n state.wrapFn = wrapped;\n return wrapped;\n}\n\nEventEmitter.prototype.once = function once(type, listener) {\n checkListener(listener);\n this.on(type, _onceWrap(this, type, listener));\n return this;\n};\n\nEventEmitter.prototype.prependOnceListener =\n function prependOnceListener(type, listener) {\n checkListener(listener);\n this.prependListener(type, _onceWrap(this, type, listener));\n return this;\n };\n\n// Emits a 'removeListener' event if and only if the listener was removed.\nEventEmitter.prototype.removeListener =\n function removeListener(type, listener) {\n var list, events, position, i, originalListener;\n\n checkListener(listener);\n\n events = this._events;\n if (events === undefined)\n return this;\n\n list = events[type];\n if (list === undefined)\n return this;\n\n if (list === listener || list.listener === listener) {\n if (--this._eventsCount === 0)\n this._events = Object.create(null);\n else {\n delete events[type];\n if (events.removeListener)\n this.emit('removeListener', type, list.listener || listener);\n }\n } else if (typeof list !== 'function') {\n position = -1;\n\n for (i = list.length - 1; i >= 0; i--) {\n if (list[i] === listener || list[i].listener === listener) {\n originalListener = list[i].listener;\n position = i;\n break;\n }\n }\n\n if (position < 0)\n return this;\n\n if (position === 0)\n list.shift();\n else {\n spliceOne(list, position);\n }\n\n if (list.length === 1)\n events[type] = list[0];\n\n if (events.removeListener !== undefined)\n this.emit('removeListener', type, originalListener || listener);\n }\n\n return this;\n };\n\nEventEmitter.prototype.off = EventEmitter.prototype.removeListener;\n\nEventEmitter.prototype.removeAllListeners =\n function removeAllListeners(type) {\n var listeners, events, i;\n\n events = this._events;\n if (events === undefined)\n return this;\n\n // not listening for removeListener, no need to emit\n if (events.removeListener === undefined) {\n if (arguments.length === 0) {\n this._events = Object.create(null);\n this._eventsCount = 0;\n } else if (events[type] !== undefined) {\n if (--this._eventsCount === 0)\n this._events = Object.create(null);\n else\n delete events[type];\n }\n return this;\n }\n\n // emit removeListener for all listeners on all events\n if (arguments.length === 0) {\n var keys = Object.keys(events);\n var key;\n for (i = 0; i < keys.length; ++i) {\n key = keys[i];\n if (key === 'removeListener') continue;\n this.removeAllListeners(key);\n }\n this.removeAllListeners('removeListener');\n this._events = Object.create(null);\n this._eventsCount = 0;\n return this;\n }\n\n listeners = events[type];\n\n if (typeof listeners === 'function') {\n this.removeListener(type, listeners);\n } else if (listeners !== undefined) {\n // LIFO order\n for (i = listeners.length - 1; i >= 0; i--) {\n this.removeListener(type, listeners[i]);\n }\n }\n\n return this;\n };\n\nfunction _listeners(target, type, unwrap) {\n var events = target._events;\n\n if (events === undefined)\n return [];\n\n var evlistener = events[type];\n if (evlistener === undefined)\n return [];\n\n if (typeof evlistener === 'function')\n return unwrap ? [evlistener.listener || evlistener] : [evlistener];\n\n return unwrap ?\n unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);\n}\n\nEventEmitter.prototype.listeners = function listeners(type) {\n return _listeners(this, type, true);\n};\n\nEventEmitter.prototype.rawListeners = function rawListeners(type) {\n return _listeners(this, type, false);\n};\n\nEventEmitter.listenerCount = function(emitter, type) {\n if (typeof emitter.listenerCount === 'function') {\n return emitter.listenerCount(type);\n } else {\n return listenerCount.call(emitter, type);\n }\n};\n\nEventEmitter.prototype.listenerCount = listenerCount;\nfunction listenerCount(type) {\n var events = this._events;\n\n if (events !== undefined) {\n var evlistener = events[type];\n\n if (typeof evlistener === 'function') {\n return 1;\n } else if (evlistener !== undefined) {\n return evlistener.length;\n }\n }\n\n return 0;\n}\n\nEventEmitter.prototype.eventNames = function eventNames() {\n return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : [];\n};\n\nfunction arrayClone(arr, n) {\n var copy = new Array(n);\n for (var i = 0; i < n; ++i)\n copy[i] = arr[i];\n return copy;\n}\n\nfunction spliceOne(list, index) {\n for (; index + 1 < list.length; index++)\n list[index] = list[index + 1];\n list.pop();\n}\n\nfunction unwrapListeners(arr) {\n var ret = new Array(arr.length);\n for (var i = 0; i < ret.length; ++i) {\n ret[i] = arr[i].listener || arr[i];\n }\n return ret;\n}\n\nfunction once(emitter, name) {\n return new Promise(function (resolve, reject) {\n function errorListener(err) {\n emitter.removeListener(name, resolver);\n reject(err);\n }\n\n function resolver() {\n if (typeof emitter.removeListener === 'function') {\n emitter.removeListener('error', errorListener);\n }\n resolve([].slice.call(arguments));\n };\n\n eventTargetAgnosticAddListener(emitter, name, resolver, { once: true });\n if (name !== 'error') {\n addErrorHandlerIfEventEmitter(emitter, errorListener, { once: true });\n }\n });\n}\n\nfunction addErrorHandlerIfEventEmitter(emitter, handler, flags) {\n if (typeof emitter.on === 'function') {\n eventTargetAgnosticAddListener(emitter, 'error', handler, flags);\n }\n}\n\nfunction eventTargetAgnosticAddListener(emitter, name, listener, flags) {\n if (typeof emitter.on === 'function') {\n if (flags.once) {\n emitter.once(name, listener);\n } else {\n emitter.on(name, listener);\n }\n } else if (typeof emitter.addEventListener === 'function') {\n // EventTarget does not have `error` event semantics like Node\n // EventEmitters, we do not listen for `error` events here.\n emitter.addEventListener(name, function wrapListener(arg) {\n // IE does not have builtin `{ once: true }` support so we\n // have to do it manually.\n if (flags.once) {\n emitter.removeEventListener(name, wrapListener);\n }\n listener(arg);\n });\n } else {\n throw new TypeError('The \"emitter\" argument must be of type EventEmitter. Received type ' + typeof emitter);\n }\n}\n", "/**\n * Copyright 2016 Google Inc. All Rights Reserved.\n *\n * Licensed under the W3C SOFTWARE AND DOCUMENT NOTICE AND LICENSE.\n *\n * https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document\n *\n */\n(function() {\n'use strict';\n\n// Exit early if we're not running in a browser.\nif (typeof window !== 'object') {\n return;\n}\n\n// Exit early if all IntersectionObserver and IntersectionObserverEntry\n// features are natively supported.\nif ('IntersectionObserver' in window &&\n 'IntersectionObserverEntry' in window &&\n 'intersectionRatio' in window.IntersectionObserverEntry.prototype) {\n\n // Minimal polyfill for Edge 15's lack of `isIntersecting`\n // See: https://github.com/w3c/IntersectionObserver/issues/211\n if (!('isIntersecting' in window.IntersectionObserverEntry.prototype)) {\n Object.defineProperty(window.IntersectionObserverEntry.prototype,\n 'isIntersecting', {\n get: function () {\n return this.intersectionRatio > 0;\n }\n });\n }\n return;\n}\n\n/**\n * Returns the embedding frame element, if any.\n * @param {!Document} doc\n * @return {!Element}\n */\nfunction getFrameElement(doc) {\n try {\n return doc.defaultView && doc.defaultView.frameElement || null;\n } catch (e) {\n // Ignore the error.\n return null;\n }\n}\n\n/**\n * A local reference to the root document.\n */\nvar document = (function(startDoc) {\n var doc = startDoc;\n var frame = getFrameElement(doc);\n while (frame) {\n doc = frame.ownerDocument;\n frame = getFrameElement(doc);\n }\n return doc;\n})(window.document);\n\n/**\n * An IntersectionObserver registry. This registry exists to hold a strong\n * reference to IntersectionObserver instances currently observing a target\n * element. Without this registry, instances without another reference may be\n * garbage collected.\n */\nvar registry = [];\n\n/**\n * The signal updater for cross-origin intersection. When not null, it means\n * that the polyfill is configured to work in a cross-origin mode.\n * @type {function(DOMRect|ClientRect, DOMRect|ClientRect)}\n */\nvar crossOriginUpdater = null;\n\n/**\n * The current cross-origin intersection. Only used in the cross-origin mode.\n * @type {DOMRect|ClientRect}\n */\nvar crossOriginRect = null;\n\n\n/**\n * Creates the global IntersectionObserverEntry constructor.\n * https://w3c.github.io/IntersectionObserver/#intersection-observer-entry\n * @param {Object} entry A dictionary of instance properties.\n * @constructor\n */\nfunction IntersectionObserverEntry(entry) {\n this.time = entry.time;\n this.target = entry.target;\n this.rootBounds = ensureDOMRect(entry.rootBounds);\n this.boundingClientRect = ensureDOMRect(entry.boundingClientRect);\n this.intersectionRect = ensureDOMRect(entry.intersectionRect || getEmptyRect());\n this.isIntersecting = !!entry.intersectionRect;\n\n // Calculates the intersection ratio.\n var targetRect = this.boundingClientRect;\n var targetArea = targetRect.width * targetRect.height;\n var intersectionRect = this.intersectionRect;\n var intersectionArea = intersectionRect.width * intersectionRect.height;\n\n // Sets intersection ratio.\n if (targetArea) {\n // Round the intersection ratio to avoid floating point math issues:\n // https://github.com/w3c/IntersectionObserver/issues/324\n this.intersectionRatio = Number((intersectionArea / targetArea).toFixed(4));\n } else {\n // If area is zero and is intersecting, sets to 1, otherwise to 0\n this.intersectionRatio = this.isIntersecting ? 1 : 0;\n }\n}\n\n\n/**\n * Creates the global IntersectionObserver constructor.\n * https://w3c.github.io/IntersectionObserver/#intersection-observer-interface\n * @param {Function} callback The function to be invoked after intersection\n * changes have queued. The function is not invoked if the queue has\n * been emptied by calling the `takeRecords` method.\n * @param {Object=} opt_options Optional configuration options.\n * @constructor\n */\nfunction IntersectionObserver(callback, opt_options) {\n\n var options = opt_options || {};\n\n if (typeof callback != 'function') {\n throw new Error('callback must be a function');\n }\n\n if (\n options.root &&\n options.root.nodeType != 1 &&\n options.root.nodeType != 9\n ) {\n throw new Error('root must be a Document or Element');\n }\n\n // Binds and throttles `this._checkForIntersections`.\n this._checkForIntersections = throttle(\n this._checkForIntersections.bind(this), this.THROTTLE_TIMEOUT);\n\n // Private properties.\n this._callback = callback;\n this._observationTargets = [];\n this._queuedEntries = [];\n this._rootMarginValues = this._parseRootMargin(options.rootMargin);\n\n // Public properties.\n this.thresholds = this._initThresholds(options.threshold);\n this.root = options.root || null;\n this.rootMargin = this._rootMarginValues.map(function(margin) {\n return margin.value + margin.unit;\n }).join(' ');\n\n /** @private @const {!Array} */\n this._monitoringDocuments = [];\n /** @private @const {!Array} */\n this._monitoringUnsubscribes = [];\n}\n\n\n/**\n * The minimum interval within which the document will be checked for\n * intersection changes.\n */\nIntersectionObserver.prototype.THROTTLE_TIMEOUT = 100;\n\n\n/**\n * The frequency in which the polyfill polls for intersection changes.\n * this can be updated on a per instance basis and must be set prior to\n * calling `observe` on the first target.\n */\nIntersectionObserver.prototype.POLL_INTERVAL = null;\n\n/**\n * Use a mutation observer on the root element\n * to detect intersection changes.\n */\nIntersectionObserver.prototype.USE_MUTATION_OBSERVER = true;\n\n\n/**\n * Sets up the polyfill in the cross-origin mode. The result is the\n * updater function that accepts two arguments: `boundingClientRect` and\n * `intersectionRect` - just as these fields would be available to the\n * parent via `IntersectionObserverEntry`. This function should be called\n * each time the iframe receives intersection information from the parent\n * window, e.g. via messaging.\n * @return {function(DOMRect|ClientRect, DOMRect|ClientRect)}\n */\nIntersectionObserver._setupCrossOriginUpdater = function() {\n if (!crossOriginUpdater) {\n /**\n * @param {DOMRect|ClientRect} boundingClientRect\n * @param {DOMRect|ClientRect} intersectionRect\n */\n crossOriginUpdater = function(boundingClientRect, intersectionRect) {\n if (!boundingClientRect || !intersectionRect) {\n crossOriginRect = getEmptyRect();\n } else {\n crossOriginRect = convertFromParentRect(boundingClientRect, intersectionRect);\n }\n registry.forEach(function(observer) {\n observer._checkForIntersections();\n });\n };\n }\n return crossOriginUpdater;\n};\n\n\n/**\n * Resets the cross-origin mode.\n */\nIntersectionObserver._resetCrossOriginUpdater = function() {\n crossOriginUpdater = null;\n crossOriginRect = null;\n};\n\n\n/**\n * Starts observing a target element for intersection changes based on\n * the thresholds values.\n * @param {Element} target The DOM element to observe.\n */\nIntersectionObserver.prototype.observe = function(target) {\n var isTargetAlreadyObserved = this._observationTargets.some(function(item) {\n return item.element == target;\n });\n\n if (isTargetAlreadyObserved) {\n return;\n }\n\n if (!(target && target.nodeType == 1)) {\n throw new Error('target must be an Element');\n }\n\n this._registerInstance();\n this._observationTargets.push({element: target, entry: null});\n this._monitorIntersections(target.ownerDocument);\n this._checkForIntersections();\n};\n\n\n/**\n * Stops observing a target element for intersection changes.\n * @param {Element} target The DOM element to observe.\n */\nIntersectionObserver.prototype.unobserve = function(target) {\n this._observationTargets =\n this._observationTargets.filter(function(item) {\n return item.element != target;\n });\n this._unmonitorIntersections(target.ownerDocument);\n if (this._observationTargets.length == 0) {\n this._unregisterInstance();\n }\n};\n\n\n/**\n * Stops observing all target elements for intersection changes.\n */\nIntersectionObserver.prototype.disconnect = function() {\n this._observationTargets = [];\n this._unmonitorAllIntersections();\n this._unregisterInstance();\n};\n\n\n/**\n * Returns any queue entries that have not yet been reported to the\n * callback and clears the queue. This can be used in conjunction with the\n * callback to obtain the absolute most up-to-date intersection information.\n * @return {Array} The currently queued entries.\n */\nIntersectionObserver.prototype.takeRecords = function() {\n var records = this._queuedEntries.slice();\n this._queuedEntries = [];\n return records;\n};\n\n\n/**\n * Accepts the threshold value from the user configuration object and\n * returns a sorted array of unique threshold values. If a value is not\n * between 0 and 1 and error is thrown.\n * @private\n * @param {Array|number=} opt_threshold An optional threshold value or\n * a list of threshold values, defaulting to [0].\n * @return {Array} A sorted list of unique and valid threshold values.\n */\nIntersectionObserver.prototype._initThresholds = function(opt_threshold) {\n var threshold = opt_threshold || [0];\n if (!Array.isArray(threshold)) threshold = [threshold];\n\n return threshold.sort().filter(function(t, i, a) {\n if (typeof t != 'number' || isNaN(t) || t < 0 || t > 1) {\n throw new Error('threshold must be a number between 0 and 1 inclusively');\n }\n return t !== a[i - 1];\n });\n};\n\n\n/**\n * Accepts the rootMargin value from the user configuration object\n * and returns an array of the four margin values as an object containing\n * the value and unit properties. If any of the values are not properly\n * formatted or use a unit other than px or %, and error is thrown.\n * @private\n * @param {string=} opt_rootMargin An optional rootMargin value,\n * defaulting to '0px'.\n * @return {Array