# Most size efficient; AS or Tweens?

**URL:** <https://forum.kirupa.com/t/most-size-efficient-as-or-tweens/168635>\
**Category:** flash\
**Created:** [November 8, 2005, 10:26pm UTC](https://forum.kirupa.com/t/most-size-efficient-as-or-tweens/168635 "2005-11-08T22:26:13Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![enforcer73](https://avatars.discourse-cdn.com/v4/letter/e/ecd19e/32.png) [@enforcer73](https://forum.kirupa.com/u/enforcer73)\
**Post date:** [November 8, 2005, 10:26pm UTC](https://forum.kirupa.com/t/most-size-efficient-as-or-tweens/168635/1 "2005-11-08T22:26:13Z")

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Hey guys,

I am trying to get more into Actionscript with Flash at the moment.  
I was wondering, when animating a website, or anything for that matter, is it more size efficient to use Tweens and simple AS like gotoAndPlay, or to just use more advanced AS?

For example if I was to create a movie clip button which when rolled over animated, would it create a smaller file by using just AS to animate it? I usually just use a lot of tweens, with stop, play, goto etc. to do it.

The goal in the end is to create as small a file as possible, for obvious reasons. While content will ultimately be responsible for size, if I can cut down on the size of non-content, such as animation, that would be good.

Yeah, so what’s your view? AS or Tweens? Which creates bigger file sizes?