tweenlite doesnt complain

[tean]

i have 3 moviclips on the stage named q0,q1,q2.

 

var arr:Array = [q0,q1,q2];

 

for (var k:int = 0; k < 5; k++) {

 

trace(arr[k]);

 

TweenLite.to( arr[k], 1, { y: 100 });

 

}

 

last 2 will be undefined but it wont throw an error...

this is meant to be?

[GreenSock]

Yep. It will throw an error when the tween actually renders, but remember that one of the goals of TweenLite is to remain very efficient and small, so I haven't added lots of conditional logic to remind people not to tween null objects, etc.

[tean]

but I am not getting any error if i try that.

[GreenSock]

Not sure what to tell you. This is weird - usually people want my help getting rid of errors, not producing them

 

If you want to put together an FLA that demonstrates the problem, I'd be happy to take a peek.

[tean]

sure, it cant be any simpler...

 

ofcourse, maybe i am missing something

 

 

even if i write it like this i get nothing:

 

import gs.TweenLite;

var arr:Array = [q0,q1,q2];

for (var k:int = 0; k < 5; k++) {
try {
	TweenLite.to( arr[k], 1, { y: 100 });
} catch (e:Error) {
	trace(e);
}
}

[GreenSock]

Yep, as expected, I got an error the first time the tween tried to render:

 

TypeError: Error #1009: Cannot access a property or method of a null object reference.
at com.greensock::TweenLite/init()
at com.greensock::TweenLite/renderTime()
at com.greensock.core::SimpleTimeline/renderTime()
at com.greensock::TweenLite$/updateAll()

 

The constructor shouldn't throw an error anyway because you could conceivably create a tween with a null target if you wanted to just use an onComplete or something. Not that I'd recommend it, but it's certainly possible.

 

By the way, I'd highly recommend upgrading to v11 by the way - looks like you're still using the old v10 or before.

[tean]

well, i am not getting an error, dont really know why, probably my flash cs3 is gone crazy...

[TronicVolta]

That behavior was changed once TweenCore was introduced in v11. If you want to see the 1009 error , try removing this from the TweenLite constructor:

if ($target == null) {
			return
}

[tean]

thank you for this, you are right, i thought something was wrong with my compiler

 

btw, greensock could have done it like this:

 

if ($target == null) {
  throw new Error("damn, these words are expensive :)");
  return
}