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useMutableSource hook (#18000)

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useMutableSource hook

useMutableSource() enables React components to safely and efficiently read from a mutable external source in Concurrent Mode. The API will detect mutations that occur during a render to avoid tearing and it will automatically schedule updates when the source is mutated.

RFC: reactjs/rfcs#147
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Brian Vaughn authored and GitHub committed 2020-03-11 12:34:39 -07:00
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commit 322cdcd3ab
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scripts/error-codes/codes.json
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@@ -346,5 +346,7 @@
"345": "Root did not complete. This is a bug in React.",
"346": "An event responder context was used outside of an event cycle.",
"347": "Maps are not valid as a React child (found: %s). Consider converting children to an array of keyed ReactElements instead.",
"348": "ensureListeningTo(): received a container that was not an element node. This is likely a bug in React."
"348": "ensureListeningTo(): received a container that was not an element node. This is likely a bug in React.",
"349": "Expected a work-in-progress root. This is a bug in React. Please file an issue.",
"350": "Cannot read from mutable source during the current render without tearing. This is a bug in React. Please file an issue."
}