Comments on: AS3: remove All Children in a DisplayObject

By: sanjay Ramani

sanjay Ramani — Thu, 21 Jul 2011 05:50:29 +0000

i am try this.
it’s work

if(this.numChildren!=0){
var k:int = this.numChildren;
while( k — )
{
child = this.getChildAt(k);
if (child)
{
if (child.parent)
{
child.parent.removeChild(child);
child = null;
}
}
}
}

By: firos

firos — Thu, 20 Jan 2011 05:55:31 +0000

Also use this..
private function removeChildrenOf(container:Sprite):void {
while (container.numChildren != 0) {
container.removeChildAt(0);
}
}

By: Edwin

Edwin — Mon, 22 Nov 2010 17:02:08 +0000

Hi Isaac, yes you’re right. The code above should remove all the children from the stage. However, if there are timers or sounds running in the children, then they will not be collected for GC.

What you can do instead is check if there are sound/timer objects playing in those children, stop them, and then remove the child from the parent. This generally happens when you use code in the timeline.

By: isaac ewing

isaac ewing — Mon, 22 Nov 2010 16:56:44 +0000

while(mc.numChildren => 0)
mc.removeChildAt(mc.numChildren – 1)

with the code above, doesn’t it still leave out some child containers from the movieclip.. for example, let’s say you are loading something, it finished and now you are removing the loader from the stage, using the method above will keep several objects from going to garbage collection, even if you declare the loader to null…. any ideas on how to clean that more efficently…

By: ran

ran — Sun, 10 Jan 2010 01:48:55 +0000

Sorry, i think, this code is better, else the container will have one remaining child :

while(mc.numChildren => 0)
{
mc.removeChildAt(mc.numChildren – 1)
}

By: ran

ran — Sun, 10 Jan 2010 01:38:43 +0000

Hello,

I think that it would be better to do as follows, so that the container does not recalculte its children ‘s index every time a child is removed

while(mc.numChildren)
{
mc.removeChildAt(mc.numChildren – 1)
}

By: Jasmeet

Jasmeet — Fri, 08 Jan 2010 00:27:01 +0000

I bet nothing better than this (it is fastest, less code, robust )

while(mc.numChildren) {
mc.removeChildAt(0)
}

By: DarkSuiyoken

DarkSuiyoken — Mon, 04 Jan 2010 23:49:54 +0000

wow, thanks for this everyone.

By: josefk

josefk — Mon, 04 Jan 2010 23:33:19 +0000

This would do it too:
function removeChildrenOf(docTarget:DisplayObjectContainer):void {
while(docTarget.numChildren) {
docTarget.removeChildAt(0)
}
}

I wonder if there is any difference in execution speed..

By: Mem's

Mem's — Mon, 04 Jan 2010 22:59:57 +0000

You can do that with a sorter version:

while(mc.numChilren > 0)
mc.removeChildAt(0);