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Re: [csswg-drafts] [web-animations] Could commitStyles always write the end state of the animation? (#5394)

From: Robert Flack via GitHub <sysbot+gh@w3.org>
Date: Fri, 28 Aug 2020 14:54:58 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-682660451-1598626497-sysbot+gh@w3.org>
I think there are issues with immediately committing the end value when you have composite animations:

```js
animA = element.animate(
    {transform: ['translateX(0)', 'translateX(500px)']},
    {duration: 5000, composite: 'add'});
animA.commitStyles(); // element.style.transform = 'translateX(500px)';
```

Now the effect is animating from 500px to 1000px?

This is why in #5475 I proposed we don't commit immediately but rather commit the style change when the animation finishes (on an infinitely precise timeline which is conceptually identical to filling forwards).

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