如何利用VUE监听网页关闭并执行退出操作

window.addEventListener("beforeunload", (e) => this.beforeunloadHandler(e));
window.addEventListener("unload", (e) => this.unloadHandler(e));

// 页面关闭之前，触发提示框
    beforeunloadHandler(e) {
      if (e) {
        e = e || window.event;
        console.log(e);
        if (e) {
          e.returnValue = "关闭提示";
        }
        return "关闭提示";
      }
    },

// 页面关闭
    async unloadHandler(e) {
      // 退出登录
      await this.handleGoLog();
    },

destroyed() {
    window.removeEventListener("beforeunload", (e) =>
      this.beforeunloadHandler(e)
    );
    window.removeEventListener("unload", (e) => this.unloadHandler(e));
  },

  data() {
    return {
      gap_time: 0,
      beforeUnload_time: 0,
    };
  },
  methods: {
    // 关闭窗口之前执行
    beforeunloadHandler() {
      this.beforeUnload_time = new Date().getTime();
    },
    unloadHandler() {
      this.gap_time = new Date().getTime() - this.beforeUnload_time;
      //判断是窗口关闭还是刷新 毫秒数判断 网上大部分写的是5
      if (this.gap_time <= 10) {
        logOut() // 退出登录接口 这里应当换为个人的登出方法
      } else {
      }
    },
  },
  destroyed() {
    // 移除监听
    window.removeEventListener("beforeunload", () => this.beforeunloadHandler());
    window.removeEventListener("unload", () => this.unloadHandler());
  },
  mounted() {
    // 监听浏览器关闭
    window.addEventListener("beforeunload", () => this.beforeunloadHandler());
    window.addEventListener("unload", () => this.unloadHandler());
  }