Actionscript3 remove all children from displayobject in actionscript 3

To remove all children from a displayObect in as3 you can use the following loop:

while (container.numChildren) {
    container.removeChildAt(0);
}

If you need to use a conditional - e.g. only remove certain children you can use something like the following example (in which the container is 'this'):

var n = this.numChildren; 
var deletionArray:Array = [];
var child:DisplayObject;
for (var i = 0; i<n; i++){
	child = this.getChildAt(i)
		if (
			!(child is topContainer) &&
			!(child is tab) &&
			!(child is bottomFrame)){
 
			deletionArray.push(child)
		}
}
 
for (var j = 0; j<deletionArray.length; j++){
	this.removeChild(deletionArray[j])
}