69ee8fd96a
* Add commercial licence and update config files
* Update license in headers
* Revert "Update license in headers"
This reverts commit 7ed7949485.
* Update only spdx id
* Remove LicenseRef- from package.json
LicenseRef- no longer allowed in npm v3 package.json
This fixes the warning in the logs and failing build check.
30 lines
997 B
TypeScript
30 lines
997 B
TypeScript
/*
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Copyright 2024 New Vector Ltd.
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Copyright 2020 The Matrix.org Foundation C.I.C.
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SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
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Please see LICENSE files in the repository root for full details.
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*/
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import { useState, useEffect, DependencyList } from "react";
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type Fn<T> = () => Promise<T>;
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export function useAsyncMemo<T>(fn: Fn<T>, deps: DependencyList, initialValue: T): T;
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export function useAsyncMemo<T>(fn: Fn<T>, deps: DependencyList, initialValue?: T): T | undefined;
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export function useAsyncMemo<T>(fn: Fn<T>, deps: DependencyList, initialValue?: T): T | undefined {
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const [value, setValue] = useState<T | undefined>(initialValue);
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useEffect(() => {
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let discard = false;
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fn().then((v) => {
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if (!discard) {
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setValue(v);
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}
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});
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return () => {
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discard = true;
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};
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}, deps); // eslint-disable-line react-hooks/exhaustive-deps
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return value;
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}
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