mui / mui/material-ui

[typescript] Replace Array API with ReadonlyArray

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#40,750 4 comments 0 reactions 0 assignees View on GitHub

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package: @mui/base package: joy-ui scope: system type: enhancement typescript
Dominant language
JavaScript
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Avg merge
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Merged PRs (30d)
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Description

Steps to reproduce

A good number of API use Array while using ReadonlyArray would be better DX, examples of such cases

Current behavior

No response

Expected behavior

No response

Context

Compare:

vs.

We have solved this twice already:

#25155
#40481

We might as well solve it once for all.

Your environment
npx @mui/envinfo
  Don't forget to mention which browser you used.
  Output from `npx @mui/envinfo` goes here.

Search keywords: ReadonlyArray

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 API declarations in packages/mui-base/src/Unstable_Popup/Popup.types.ts, packages/mui-base/src/useSlider/useSlider.ts, and packages/mui-base/src/useSlider/useSlider.types.ts. Review issues #25155 and #40481 for prior fixes, then search the repository for public APIs using Array where ReadonlyArray is appropriate. Done means the applicable APIs have been updated consistently across the repository.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
frontend
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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