text: /*
   * @Author: your name
   * @Date: 2021-05-14 21:39:02
   * @LastEditTime: 2021-05-24 21:59:11
   * @LastEditors: Please set LastEditors
   * @Description: In User Settings Edit
   * @FilePath: \VueCli\supermall\src\common\utils.js
   */
  //防抖动处理,需要加一个默认值。
  export function debounce(func, delay = 100) {
      let timer = null;
      return function (...args) {
          if (timer) clearTimeOut(timer);
          timer = setTimeout(() => { func.apply(this, args) }, delay);  //定时检查，如果定时器已经存在则清掉，否则到时间后，执行函数
      }
  }
  
  export function formatDate(date, fmt) {
      if (/(y+)/.test(fmt)) {
          fmt = fmt.replace(RegExp.$1, (date.getFullYear() + '').substr(4 - RegExp.$1.length));
      }
      let o = {
          'M+': date.getMonth() + 1,
          'd+': date.getDate(),
          'h+': date.getHours(),
          'm+': date.getMinutes(),
          's+': date.getSeconds()
      };
      for (let k in o) {
          if (new RegExp(`(${k})`).test(fmt)) {
              let str = o[k] + '';
              fmt = fmt.replace(RegExp.$1, (RegExp.$1.length === 1) ? str : padLeftZero(str));
          }
      }
      return fmt;
  };
  
  function padLeftZero(str) {
      return ('00' + str).substr(str.length);
  };
  