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22 lines
624 B
TypeScript
22 lines
624 B
TypeScript
/**
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* Track whether a component is current mounted. Generally less preferable than
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* properlly canceling effects so they don't run after a component is unmounted,
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* but helpful in cases where that isn't feasible, such as a `Promise` resolution.
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*
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* @returns a function that returns the current isMounted state of the component
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*
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* ```ts
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* const [data, setData] = useState(null)
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* const isMounted = useMounted()
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*
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* useEffect(() => {
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* fetchdata().then((newData) => {
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* if (isMounted()) {
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* setData(newData);
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* }
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* })
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* })
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* ```
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*/
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export default function useMounted(): () => boolean;
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