Concatenate and manipulate the information inside the curly braces

            
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
    <mx:String id="displayName">Jed90210</mx:String>
    <mx:Label text="{'Hello, ' + displayName}" />
</mx:Application>

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Concatenate and manipulate the information inside the curly braces : Data Binding « Data Model « Flex

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