if(key!=undefined){return'#'+key;}},getKeys:function(){return Object.keys(this.store).map(function(key){return'#'+key;});},_parseKey:function(key){if(key&&key[0]=='#'){return key.slice(1);}},setItem:function(key,item){if(key=this._parseKey(key)){var old=this.store[key];if(old){this._removeFromMap(old);}