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Vanilla JS TimelineMax Produces Console Logs But Doesn't Play

Go to solution Solved by PointC,

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This thread was started before GSAP 3 was released. Some information, especially the syntax, may be out of date for GSAP 3. Please see the GSAP 3 migration guide and release notes for more information about how to update the code to GSAP 3's syntax. 

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I have a websocket project I'm working on. When a user joins the site they get a div created for them with an icon as background image. I have a function that runs on DOMContentLoaded that creates fake user divs and wanted to build a timeline of animation moving them around via the X and Y properties in TweenLite.


I am really stuck scratching my head - my TimelineMax produces console logs on Update() but nothinggggg moves.


I could really appreciate a second pair of eyes! I've distilled the function in question down to a codepen. 


Thank you in advance!



See the Pen ygEjgL by tetreault (@tetreault) on CodePen

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HI tetreault :)


Welcome to the GreenSock forum.


You're only loading TweenLite so you'll also need the CSS Plugin:

<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/1.19.1/plugins/CSSPlugin.min.js"></script>

If you were loading TweenMax, that plugin would be loaded by default. TweenMax includes:

  • TweenLite
  • TweenMax
  • TimelineLite
  • TimelineMax
  • CSSPlugin
  • AttrPlugin
  • RoundPropsPlugin
  • DirectionalRotationPlugin
  • BezierPlugin
  • EasePack

That should get things working for you.


Happy tweening.


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OMG. Face-freaking-palm. I've used Greensock for a while now and usually use TweenMax. I'm not sure why I decided to use TweenLite this time, but I was unaware you needed the CSSPlugin. Must have really not been paying attention. 


That resolves it, thanks!

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It happens to all of us. :)


Glad to hear it's all working for you now. Happy tweening.

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