vue監聽組件是否在可視區域

    mounted() {
      window.addEventListener("scroll", this.scrollHandle, true)
    },

    methods: {
      scrollHandle() {
        const offset = this.$el.getBoundingClientRect();
        const offsetTop = offset.top;
        const offsetBottom = offset.bottom;
        if (offsetTop <= window.innerHeight && offsetBottom >= 0) {
          console.log('移出可視區域');
        } else {
          console.log('移出可視區域');
        }
      }
　　}

          //移除監聽
          // window.removeEventListener('scroll', this.scrollHandle, true);

直接寫在組件里就可以