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Convert value in TextInput to Number

<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">     <mx:Script>         public function showStyles():void {             lb1.text = String(ip1.getStyle("fontSize"));         }         public function setNewStyles(newSize:Number):void {             ip1.setStyle("fontSize",newSize);         }       </mx:Script>     <mx:VBox id="vb">         <mx:TextInput styleName="myClass" text="My attrs" id="ip1" width="400" />         <mx:Label id="lb1" text="" width="400" />         <mx:Button label="Get Style" click="showStyles();" />         <mx:Button label="Set Style" click="setNewStyles(Number(ip2.text));" />         <mx:TextInput text="" id="ip2" width="50" />     </mx:VBox> </mx:Application>