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Animating elements which dynamically enter and leave the DOM using React

alan0buchanan test
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Warning: Please note

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 Some information, especially the syntax, may be out of date for GSAP 3.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 am using azazdeaz's great React GSAP library on a project. Thanks for your work azazdeaz!

In my demo, you can see a bubble entering in from the bottom and leaving to the top.

 

However in the `render` method's `return` you can see that more bubbles are meant to render based on the `state`'s `phase` value.

 

The state value is incrementing as can be seen in the console log and React Dev Tools.

 

So I guess the `slideAnim` function isn't updating when the `render`'s contents update.

 

First solution I thought of was to run the animation again from a `componentDidUpdate`, but then it runs many more times than I want.

 

As I write this I realise using `ReactCSSTransitionGroup` might be the ideal solution here.

 

Could there be a neat solution for this situation using the React GSAP library?

 

See the Pen gmaBRL?editors=0010 by alanbuchanan (@alanbuchanan) on CodePen

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Hello alan0buchanan!

 

Shameless plug here: I documented some of my pains and discoveries with React and GSAP in this thread. Although I am not using azazdeaz's library, you will see relevant gotcha's and solutions that you can adapt for you case.

 

The solution to your problem is to use not ReactCSSTransitionGroup but ReactTransitionGroup - I'll refer again to my thread as there's some debate about when, why and shortfalls of it.

 

Also,

See the Pen XpzdNm by dipscom (@dipscom) on CodePen

.

 

Happy Tweening!

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