reactjs / reactjs/react.dev

New array methods

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JavaScript
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Description

Now that all browsers support the new array methods toSpliced(), with(), toSorted(), toReversed(), do they offer a better solution compared to the spread operator, worth documenting in the Updating Arrays in State page?

In the current docs:

const insertAt = 1; // Could be any index
    const nextArtists = [
      // Items before the insertion point:
      ...artists.slice(0, insertAt),
      // New item:
      { id: nextId++, name: name },
      // Items after the insertion point:
      ...artists.slice(insertAt)
    ];

Could be replaced with:

 setArtists(artists.toSpliced(1, 0, { id: nextId++, name: name }));

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First steps

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  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 Updating Arrays in State page and review the linked array-method reference to compare toSpliced(), with(), toSorted(), and toReversed() with the existing spread-operator examples. Done means deciding whether these methods provide clearer guidance and updating the page if they do.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, react
Domain
documentation
Issue type
Documentation
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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