reactjs / reactjs/react.dev

How are keys compared?

Open
#4,144 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
JavaScript
Stars
11.8k
Forks
7.9k
Avg merge
1d 11h
Merged PRs (30d)
11

Description

I'm guessing Object.is but it is not specified anywhere on https://reactjs.org/docs/reconciliation.html.
I couldn't easily find it with Google as well :/

This should be added to the abovementioned page.

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 reconciliation documentation page linked in the issue and determine how React compares keys. Update that page to state the comparison behavior clearly, then verify the explanation answers whether Object.is is used.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, react
Domain
documentation
Issue type
Documentation
Difficulty
1/5
Estimated time
Under an hour
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
50/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.