react / react/react-native

structuredClone turns boxed BigInt values into plain objects

Open Beginner friendly
#58,210 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Needs: Author Feedback Needs: Repro
Dominant language
C++
Stars
127k
Forks
25.3k
Avg merge
1d 23h
Merged PRs (30d)
4

Description

Description

The React Native structuredClone polyfill handles boxed Boolean, Number, and String values but omits boxed BigInt. structuredClone(Object(1n)) therefore returns a plain empty object that is not a BigInt wrapper and has no usable primitive value.

Expected behavior

The clone should be a distinct boxed BigInt whose valueOf() matches the input. Native structuredClone follows this behavior.

React Native Version

0.87.1 and current main

Affected Platforms

JavaScript runtime - All

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 by locating the React Native structuredClone polyfill and read how boxed Boolean, Number, and String values are handled. Add coverage for structuredClone(Object(1n)) and verify the result is a distinct boxed BigInt whose valueOf() matches the input.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, react-native
Domain
mobile
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
70/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.