vue使用函数防抖监听窗口的变化

    resizeHandler: function() {
      if (this.timer) clearTimeout(this.timer);
      this.timer = setTimeout(() => {
        this.setWid();
        this.isShow();
      }, 500);
    },

添加监听事件

mounted() {
    window.onresize = () => {
        this.resizeHandler();
      };
}

移除监听事件

  beforeDestroy() {
    window.onresize = null;
  }