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lunaleaps merged 4 commits into from
Sep 17, 2025
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Add a warning about lack of devtool support #4803

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Add a warning about lack of devtool support
lunaleaps Sep 16, 2025
25e0743
Update virtualview.md
lunaleaps Sep 16, 2025
cefa0c2
Update docs/virtualview.md
lunaleaps Sep 17, 2025
374d965
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lunaleaps Sep 17, 2025
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5 changes: 5 additions & 0 deletions docs/virtualview.md
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Expand Up @@ -41,6 +41,11 @@ Blocking the main thread can provide a better user experience by preventing flas

However, blocking the main thread also comes with tradeoffs. If an update operation, such as mounting the children of a `VirtualView`, takes too long to finish, it can now drop frames. Dropping more than a couple frames can lead to a worse user experience by making the app feel sluggish and non-responsive. Dropping too many frames may cause the operating system to display a modal indicating the app is not responsive, or it may even terminate your app!

:::warning
DevTools currently does not support debugging JavaScript on the main thread. This means if you are debugging code called from `onModeChange` that is rendered on the main thread, your debugger may freeze.
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### Prerendering

`VirtualView` enables you to benefit from main thread rendering while mitigating the disadvantages of dropped frames by rendering earlier before it is needed. This is called “prerendering”.
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