Files
element-call/src/useMergedRefs.ts
2023-02-13 22:38:27 -05:00

24 lines
675 B
TypeScript

import { MutableRefObject, RefCallback, useCallback } from "react";
/**
* Combines multiple refs into one, useful for attaching multiple refs to the
* same DOM node.
*/
export const useMergedRefs = <T>(
...refs: (MutableRefObject<T | null> | RefCallback<T | null>)[]
): RefCallback<T | null> =>
useCallback(
(value) =>
refs.forEach((ref) => {
if (typeof ref === "function") {
ref(value);
} else {
ref.current = value;
}
}),
// Since this isn't an array literal, we can't use the static dependency
// checker, but that's okay
// eslint-disable-next-line react-hooks/exhaustive-deps
refs
);