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Convert value in TextInput to number and bind

<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">   <mx:Model id="myModel">     <myModel>       <c>{(Number(numberInput.text)) * 6 / 7}</c>     </myModel>   </mx:Model>   <mx:Form>     <mx:FormItem label="Enter a number:">       <mx:TextInput id="numberInput" text="0" />     </mx:FormItem>   </mx:Form>   <mx:Text text="{'Calculation: '+numberInput.text+' * 6 / 7 = '+myModel.c}" /> </mx:Application>