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在vue中使用防抖和节流,防止重复点击或重复上拉加载实例

时间:2020-11-30 12:34:21 | 栏目:vue | 点击:

废话不多说,直接上代码吧!

/**
 * 函数防抖 (只执行最后一次点击)
 * @param fn
 * @param delay
 * @returns {Function}
 * @constructor
 */
export const Debounce = (fn, t) => {
  let delay = t || 500;
  let timer;
  console.log(fn)
  console.log(typeof fn)
  return function () {
    let args = arguments;
    if(timer){
      clearTimeout(timer);
    }
    timer = setTimeout(() => {
      timer = null;
      fn.apply(this, args);
    }, delay);
  }
};
/**
 * 函数节流
 * @param fn
 * @param interval
 * @returns {Function}
 * @constructor
 */
export const Throttle = (fn, t) => {
  let last;
  let timer;
  let interval = t || 500;
  return function () {
    let args = arguments;
    let now = +new Date();
    if (last && now - last < interval) {
      clearTimeout(timer);
      timer = setTimeout(() => {
        last = now;
        fn.apply(this, args);
      }, interval);
    } else {
      last = now;
      fn.apply(this, args);
    }
  }
};

用法

...
methods:{
 getAliyunData:Throttle(function(){
 ...
 },1000),
}
...

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