TS对定时器的封装

需求

因为需要在项目对定时器做统一管理，所以做特定封装，方便维护

实现

const timerObj: Record<string, number> = {};

export enum TimerKeys {
  timerId1 = "timerId1",
  timerId2 = "timerId2",
  timerId3 = "timerId3",
}

// as iOS Method
export function createScheduled(
  timerId: string,
  callback: Function,
  delay: number = 20
) {
  clearInterval(timerObj[timerId]);
  timerObj[timerId] = setInterval(() => {
    callback && callback();
  }, delay);
}

// 清除指定定时器
export function clearScheduled(timerId: string) {
  clearInterval(timerObj[timerId]);
}

// 清除所有定时器
export function clearAllScheduled() {
  Object.keys(timerObj).forEach((key) => {
    clearInterval(timerObj[key]);
  });
}

// as Andorid Method
export function postDelayed(callback: Function, delay: number) {
  let timerId: number | undefined = undefined;
  if (timerId) clearTimeout(timerId);
  timerId = setTimeout(() => {
    clearTimeout(timerId);
    callback && callback();
  }, delay);
}

// 防抖
export function debounce(callback: Function, delay: number) {
  let timerId: number | undefined = undefined;
  return function () {
    if (timerId) clearTimeout(timerId);
    timerId = setTimeout(function () {
      clearTimeout(timerId);
      timerId = undefined;
      callback && callback();
    }, delay);
  };
}

// 节流
export function throttle(callback: Function, delay: number) {
  let timerId: number | undefined = undefined;
  return function () {
    if (!timerId) return false;
    timerId = setTimeout(function () {
      clearTimeout(timerId);
      timerId = undefined;
      callback && callback();
    }, delay);
  };
}

使用方式

createScheduled(()=>{
  console.log("xxx")
}, 1000)