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AS3: Safely remove content from the Stage

/ Published in: ActionScript 3
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There are times when I'm constantly adding and removing a child. For example, when I'm trying to throw out alerts to a user, I'll addChild( alertMc) then removeChild( alertMc ) when I'm done. Sometimes things get a bit tricky and I'll mistakenly call removeChild() when content is no longer available on stage. To remedy this, what I do now is call my function removeContent( stage, "nameOfMc_Loader_anything") and it will first make sure that my target is on the stage before it removes it.

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  1. private function removeContent( stg:Stage, childName:String ):void
  2. {
  3. 	if( stg.getChildByName( childName ) != null){
  4. 		//J. If var transparencyMc has been loaded, test if it's currently visible. If it is, then remove it from the stage
  5. 		if( stg.getChildByName( childName ).visible ) stg.removeChild( stg.getChildByName( childName ) );					
  6. 	}			  			
  7. }

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