misskey/packages/frontend/src/scripts/use-interval.ts
Shun Sakai c2370a1be6
chore: 著作権とライセンスについての情報を各ファイルに追加する (#11348)
* chore: Add the SPDX information to each file

Add copyright and licensing information as defined in version 3.0 of
the REUSE Specification.

* tweak format

---------

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>
2023-07-27 14:31:52 +09:00

37 lines
776 B
TypeScript

/*
* SPDX-FileCopyrightText: syuilo and other misskey contributors
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { onMounted, onUnmounted } from 'vue';
export function useInterval(fn: () => void, interval: number, options: {
immediate: boolean;
afterMounted: boolean;
}): (() => void) | undefined {
if (Number.isNaN(interval)) return;
let intervalId: number | null = null;
if (options.afterMounted) {
onMounted(() => {
if (options.immediate) fn();
intervalId = window.setInterval(fn, interval);
});
} else {
if (options.immediate) fn();
intervalId = window.setInterval(fn, interval);
}
const clear = () => {
if (intervalId) window.clearInterval(intervalId);
intervalId = null;
};
onUnmounted(() => {
clear();
});
return clear;
}