mirror of
https://github.com/gravitational/teleport.git
synced 2026-11-02 23:31:08 +08:00
Jeff Pihach
3f75acb163
* Lint the web files but not node_modules or vendored files. * Add license headers to web files that were missing it. * Add missing licenses.
39 lines
1.1 KiB
TypeScript
39 lines
1.1 KiB
TypeScript
/**
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* Copyright 2023 Gravitational, Inc
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { useEffect, useRef } from 'react';
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export function useInterval(callback: () => void, delay: number | null): void {
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const savedCallback = useRef<() => void>();
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// Remember the latest callback
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useEffect(() => {
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savedCallback.current = callback;
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}, [callback]);
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// Set up the interval
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useEffect(() => {
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function tick() {
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savedCallback.current();
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}
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if (delay !== null) {
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const id = setInterval(tick, delay);
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return () => clearInterval(id);
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}
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}, [delay]);
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}
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