Vue3监听标签页变化

import { onMounted } from "vue";

onMounted(() => {
  document.addEventListener("visibilitychange", () => {
    if (document.visibilityState === "visible") {
      console.log("已切换到自己的标签页");
    } else {
      console.log("已切换到其他标签页");
    }
  });
});