pmndrs / pmndrs/react-spring

[bug]: useState and api.start cause dom attributes not updated

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area: web kind: bug
Dominant language
TypeScript
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Description

Which react-spring target are you using?
  • @react-spring/web
  • @react-spring/three
  • @react-spring/native
  • @react-spring/konva
  • @react-spring/zdog
What version of react-spring are you using?

9.7.1

What's Wrong?

When api.start and useState are executed together, the property on the dom that judges x to be 0 is not updated

To Reproduce

Here is my minimal rendition @joshuaellis

link: https://codesandbox.io/s/awesome-joana-t28gsz?file=/src/App.tsx

You can see that data-count is not updated correctly but x is already 0

Expected Behaviour

attributes update

Link to repo

https://codesandbox.io/s/awesome-joana-t28gsz?file=/src/App.tsx

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked CodeSandbox reproduction in src/App.tsx, using the @react-spring/web target and the interaction between useState and api.start. Run the example and trace why data-count differs while x is 0; done means the DOM attributes update consistently with the animated value.

Written by the indexing model from the issue text.

Assessment

Tech stack
react, typescript
Domain
frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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