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GalindoSVQ/usePrevious

Created November 2, 2023 14:46
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usePrevious
import * as React from 'react';
export default function usePrevious(newValue: string) {
const [value, setValue] = React.useState<string>(newValue);
const [preValue, setPreValue] = React.useState<string | null>(null);
if (newValue !== value) {
setPreValue(value);
setValue(newValue);
}
return preValue;
}
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Stackblitz link: https://stackblitz.com/edit/vitejs-vite-hbfnm1?file=src%2FusePrevious.ts

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