reactjs / reactjs/react.dev

React in web-component tutorial missing unmount

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#4,080 0 comments 0 reactions 0 assignees View on GitHub

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Dominant language
JavaScript
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Description

We are using a react component through a web-component inspired by the snippet in docs.

We stumbled over an issue after which we noticed that the component is never unmounted.

We added a disconnectedCallback like this

disconnectedCallback() {
    ReactDOM.unmountComponentAtNode(this)
  }

I could make a quick PR adding that if you folks think that makes sense!

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 web-components tutorial linked in the issue, especially the example showing React used inside a custom element. Update the example to document cleanup when the element is disconnected, using the callback and unmount API described in the issue. Done means the tutorial clearly covers unmounting and the example remains valid.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, react
Domain
documentation
Issue type
Documentation
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
45/100

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