reactjs / reactjs/react.dev

React 18 use messagechannel to schuduler, and this is macrotask ? not microtasks?

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Description

In this release, React is dropping support for Internet Explorer, which is going out of support on June 15, 2022. We’re making this change now because new features introduced in React 18 are built using modern browser features such as microtasks which cannot be adequately polyfilled in IE.

React 18 use messagechannel to schuduler, and this is macrotask ? not microtasks?

https://reactjs.org/blog/2022/03/08/react-18-upgrade-guide.html#dropping-support-for-internet-explorer

Is the doc wrong ?

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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 React 18 Upgrade Guide section linked in the issue and compare its statement about microtasks with the question about MessageChannel scheduling. Confirm whether the wording is accurate, then update the documentation if needed so the scheduling terminology is clear.

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Assessment

Tech stack
javascript, react
Domain
documentation
Issue type
Documentation
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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