HashMap in ActionScript

<br /> package {<br /> <br /> public dynamic class HashMap extends Object {<br /> <br /> public function clear():void {<br /> for (var key:String in this)<br /> this[key] = null;<br /> }<br /> <br /> /** 'get' is an ActionScript reserved word */<br /> public function getIndex(index:int):* {<br /> var i:int = 0;<br /> for (var key:String in this) {<br /> if (i==index)<br /> return this[key];<br /> }<br /> return null;<br /> }<br /> <br /> /** ActionScript cannot overload functions so a unique function name was chosen */<br /> public function getItem(key:String):Object { return this[key]; }<br /> <br /> public function put(key:String, value:Object):void {<br /> this[key] = value;<br /> }<br /> <br /> public function remove(key:String):Object {<br /> this[key] = null;<br /> return this;<br /> }<br /> <br /> public function size():int {<br /> var len:int = 0;<br /> for (var key:String in this)<br /> len++;<br /> return len;<br /> }<br /> <br /> public function toString():String {<br /> var delim:String = "";<br /> var str:String;<br /> for (var key:String in this) {<br /> str += delim + key + ": " + this[key];<br /> delim = "\n";<br /> }<br /> return str;<br /> }<br /> <br /> public function values():ArrayCollection {<br /> var values:ArrayCollection = new ArrayCollection();<br /> for (var key:String in this)<br /> values.addItem(this[key]);<br /> return values;<br /> }<br /> }<br /> }<br />