Remove useMutationEffect #14336
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Remove useMutationEffect #14336
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bvaughn
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Nov 27, 2018
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sorry @kentcdodds |
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Haha, I'll update my blogpost :D |
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ReactDOM: size: 0.0%, gzip: 0.0% Details of bundled changes.Comparing: 48f1e5b...708c60a react-dom
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useMutationEffect has problems (namely, refs aren't attached at the time that it runs) and we're not positive it's necessary. useLayoutEffect runs at the same time as componentDidMount/Update so it's sufficient for all existing use cases; it can be used in any case that useEffect happens too late. Until we figure out what we want to do, let's delete it.
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Nov 27, 2018
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diegohaz
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Nov 28, 2018
BREAKING CHANGE: `useContextMutationEffect` has been removed. `React.useMutationEffect` will be removed from React hooks, so this is just to reflect that (see facebook/react#14336).
sophiebits
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Nov 28, 2018
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Maybe we can also update docs here. Code snippet explaining how to read an often-changing value from useCallback used this hook which is no longer available. |
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That exact link has already been updated. |
facebook-github-bot
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Nov 29, 2018
Summary: Resolves #7219 - [x] 2fdcda5: Removed `React.useMutationEffect` hook (facebook/react/pull/14336) and updated tests. This hook was only ever exposed in an alpha release of 16.7 and so it should be safe to remove in a non-backwards-compatible way. - [x] dabf49e: Add `React.Suspense` component and tests. (No final public documentation exists for `Suspense` yet– although we're working on it. For the time being, [tests like this](https://github.com/facebook/react/blob/master/packages/react-reconciler/src/__tests__/ReactSuspense-test.internal.js) can serve as a reference.) - [x] 8df05bd: Fixed invalid `useCallback` definition and tests. - [x] 063b022: Fixed invalid `React.lazy` signature to reflect that a `Promise` with a "default" property should be returned (rather than a React component). Pull Request resolved: #7213 Reviewed By: jbrown215 Differential Revision: D13222880 Pulled By: bvaughn fbshipit-source-id: 77e59e320698567c343c91a67b3aa91e9c925873
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gabelevi
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Dec 4, 2018
Summary: Resolves #7219 - [x] 2fdcda5: Removed `React.useMutationEffect` hook (facebook/react/pull/14336) and updated tests. This hook was only ever exposed in an alpha release of 16.7 and so it should be safe to remove in a non-backwards-compatible way. - [x] dabf49e: Add `React.Suspense` component and tests. (No final public documentation exists for `Suspense` yet– although we're working on it. For the time being, [tests like this](https://github.com/facebook/react/blob/master/packages/react-reconciler/src/__tests__/ReactSuspense-test.internal.js) can serve as a reference.) - [x] 8df05bd: Fixed invalid `useCallback` definition and tests. - [x] 063b022: Fixed invalid `React.lazy` signature to reflect that a `Promise` with a "default" property should be returned (rather than a React component). Pull Request resolved: #7213 Reviewed By: jbrown215 Differential Revision: D13222880 Pulled By: bvaughn fbshipit-source-id: 9e1b48ace984051928c4ab92fa61182ad70f7119
yuchi
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Dec 18, 2018
Also, I was **not** testing for them, so... Related: facebook/react#14336
Someone asked the above question (but I guess it was deleted before I had a chance to respond?) Anyway, in case someone else comes across this PR and wonders the same– it seemed worth re-emphasizing what Sophie said in the PR description:
Updating the above repro to use |
jetoneza
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Jan 23, 2019
useMutationEffect has problems (namely, refs aren't attached at the time that it runs) and we're not positive it's necessary. useLayoutEffect runs at the same time as componentDidMount/Update so it's sufficient for all existing use cases; it can be used in any case that useEffect happens too late. Until we figure out what we want to do, let's delete it.
n8schloss
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Jan 31, 2019
useMutationEffect has problems (namely, refs aren't attached at the time that it runs) and we're not positive it's necessary. useLayoutEffect runs at the same time as componentDidMount/Update so it's sufficient for all existing use cases; it can be used in any case that useEffect happens too late. Until we figure out what we want to do, let's delete it.
yesmeck
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OhIAmFine
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codegod2222
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Jan 12, 2023
BREAKING CHANGE: `useContextMutationEffect` has been removed. `React.useMutationEffect` will be removed from React hooks, so this is just to reflect that (see facebook/react#14336).
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useMutationEffect has problems (namely, refs aren't attached at the time that it runs) and we're not positive it's necessary. useLayoutEffect runs at the same time as componentDidMount/Update so it's sufficient for all existing use cases; it can be used in any case that useEffect happens too late. Until we figure out what we want to do, let's delete it.