12 lines
228 B
TypeScript
12 lines
228 B
TypeScript
import React from 'react';
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export function usePrevious<T>(value: T): T | undefined {
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const ref = React.useRef<T | undefined>(value);
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React.useEffect(() => {
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ref.current = value;
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}, [value]);
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return ref.current;
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}
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