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39 lines
893 B
39 lines
893 B
3 years ago
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/**
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* @description: 创建一个定时控制器
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* @param {function} fn 每次执行回调
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* @param {number} wait 间隔时间 5000
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* @param {boolean} immediate 初始化是否启动，false
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* @return {object} {start:Function,stop:Function}返回一个对象，可暂停和启动
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* @example createTimer(()=>console.log('执行'))
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*/
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export default function createTimer(fn, wait = 5000, immediate = false) {
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let timerId = null;
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let isStop = true;
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const start = function () {
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if (isStop) {
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isStop = false;
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fn(next, stop);
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}
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return this;
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};
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const next = function () {
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if (!isStop) {
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stop();
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timerId = setTimeout(start, wait);
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}
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};
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const stop = function () {
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isStop = true;
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if (timerId) {
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clearTimeout(timerId);
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timerId = null;
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}
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return this;
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};
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if (immediate) start();
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return { start, stop };
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}
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