20 lines
469 B
TypeScript
20 lines
469 B
TypeScript
// Metro module 8125 (f8126).
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import { useEffect, useRef } from "react";
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export default function usePrevious(a0) {
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const current = a0;
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const ref = useRef(null);
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useEffect(() => {
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ref.current = current;
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}, [a0]);
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return ref.current;
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};
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export function usePreviousWhen({ value, shouldUpdate }) {
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const ref2 = useRef(null);
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useEffect(() => {
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if (shouldUpdate) {
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ref2.current = value;
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}
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}, [value, shouldUpdate]);
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return ref2.current;
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}
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