https://scharnhausen-west.de/bundles/hitcomfrontend/js/polyfills/Element.classList.min.js

1/*! @source http://purl.eligrey.com/github/classList.js/blob/master/classList.js */
2if("document"in self){if(!("classList"in document.createElement("_"))||document.createElementNS&&!("classList"in document.createElementNS("http://www.w3.org/2000/svg","g")))!function(view){"use strict";if("Element"in view){var elemCtrProto=view.Element.prototype,objCtr=Object,strTrim=String.prototype.trim||function(){return this.replace(/^\s+|\s+$/g,"")},arrIndexOf=Array.prototype.indexOf||function(item){for(var i=0,len=this.length;i<len;i++)if(i in this&&this[i]===item)return i;return-1},DOMEx=function(type,message){this.name=type,this.code=DOMException[type],this.message=message},checkTokenAndGetIndex=function(classList,token){if(""===token)throw new DOMEx("SYNTAX_ERR","An invalid or illegal string was specified");if(/\s/.test(token))throw new DOMEx("INVALID_CHARACTER_ERR","String contains an invalid character");return arrIndexOf.call(classList,token)},ClassList=function(elem){for(var trimmedClasses=strTrim.call(elem.getAttribute("class")||""),classes=trimmedClasses?trimmedClasses.split(/\s+/):[],i=0,len=classes.length;i<len;i++)this.push(classes[i]);this._updateClassName=function(){elem.setAttribute("class",this.toString())}},classListProto=ClassList.prototype=[],classListGetter=function(){return new ClassList(this)};if(DOMEx.prototype=Error.prototype,classListProto.item=function(i){return this[i]||null},classListProto.contains=function(token){return-1!==checkTokenAndGetIndex(this,token+="")},classListProto.add=function(){var token,tokens=arguments,i=0,l=tokens.length,updated=!1;do{if(-1===checkTokenAndGetIndex(this,token=tokens[i]+""))this.push(token),updated=!0}while(++i<l);if(updated)this._updateClassName()},classListProto.remove=function(){var token,index,tokens=arguments,i=0,l=tokens.length,updated=!1;do{for(index=checkTokenAndGetIndex(this,token=tokens[i]+"");-1!==index;)this.splice(index,1),updated=!0,index=checkTokenAndGetIndex(this,token)}while(++i<l);if(updated)this._updateClassName()},classListProto.toggle=function(token,force){token+="";var result=this.contains(token),method=result?!0!==force&&"remove":!1!==force&&"add";if(method)this[method](token);if(!0===force||!1===force)return force;else return!result},classListProto.toString=function(){return this.join(" ")},objCtr.defineProperty){var classListPropDesc={get:classListGetter,enumerable:!0,configurable:!0};try{objCtr.defineProperty(elemCtrProto,"classList",classListPropDesc)}catch(ex){if(void 0===ex.number||-2146823252===ex.number)classListPropDesc.enumerable=!1,objCtr.defineProperty(elemCtrProto,"classList",classListPropDesc)}}else if(objCtr.prototype.__defineGetter__)elemCtrProto.__defineGetter__("classList",classListGetter)}}(self);!function(){"use strict";var testElement=document.createElement("_");if(testElement.classList.add("c1","c2"),!testElement.classList.contains("c2")){var createMethod=function(method){var original=DOMTokenList.prototype[method];DOMTokenList.prototype[method]=function(token){var i,len=arguments.length;for(i=0;i<len;i++)token=arguments[i],original.call(this,token)}};createMethod("add"),createMethod("remove")}if(testElement.classList.toggle("c3",!1),testElement.classList.contains("c3")){var _toggle=DOMTokenList.prototype.toggle;DOMTokenList.prototype.toggle=function(token,force){if(1 in arguments&&!this.contains(token)===!force)return force;else return _toggle.call(this,token)}}testElement=null}()}