Files
outline/app/hooks/usePrevious.ts
Tom Moor 15b1069bcc chore: Move to Typescript (#2783)
This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.

closes #1282
2021-11-29 06:40:55 -08:00

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210 B
TypeScript

import * as React from "react";
export default function usePrevious<T>(value: T): T | void {
const ref = React.useRef<T>();
React.useEffect(() => {
ref.current = value;
});
return ref.current;
}