maher
12 lines
330 B
TypeScript
Executable File
12 lines
330 B
TypeScript
Executable File
import {useEffect, useRef} from 'react';
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export function usePrevious<T>(value: T) {
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const ref = useRef<T>();
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// Store current value in ref
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useEffect(() => {
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ref.current = value;
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}, [value]); // Only re-run if value changes
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// Return previous value (happens before update in useEffect above)
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return ref.current;
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}
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