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outline/app/hooks/usePrevious.js
Tom Moor ec38f5d79c
refactor: Remove old react lifecycle methods (#1480)
* refactor: Remove deprecated APIs

* bump mobx-react for hooks support

* inject -> useStores
https://mobx-react.js.org/recipes-migration\#hooks-to-the-rescue

* chore: React rules of hooks lint
2020-08-23 11:51:56 -07:00

11 lines
203 B
JavaScript

// @flow
import * as React from "react";
export default function usePrevious(value: any) {
const ref = React.useRef();
React.useEffect(() => {
ref.current = value;
});
return ref.current;
}