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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,13 @@ | ||
import { useEffect, useRef } from "react"; | ||
/** | ||
* Custom hook to get the previous value of the input passed in param. | ||
* @param value the current value | ||
* @returns the previous value of the value passed in params | ||
*/ | ||
export function usePrevious<T>(value : T): T | undefined { | ||
const ref = useRef<T>(); | ||
useEffect(() => { | ||
ref.current = value; | ||
}, [value]); | ||
return ref.current; | ||
} |
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