1、在setItem的地方配置如下代碼

  if (typeof window !== "undefined") {

    var orignalSetItem = localStorage.setItem;
    localStorage.setItem = function (key, newValue) {
      var setItemEvent = new Event("setItemEvent");
      setItemEvent.newValue = newValue;
      window.dispatchEvent(setItemEvent);
      orignalSetItem.apply(this, arguments);
    }

    localStorage.setItem("onbehalf", JSON.stringify(onbehalf));
  }

2、在需要使用localStorage新值的地方添加監聽函數,如下代碼

 //listener localStorage change
  if (typeof window !== "undefined") {
    window.addEventListener("setItemEvent", function (e) {
      let newUser = JSON.parse(e.newValue);
      if (login?.ada !== newUser?.ada) {
        setShowPoint(true)
      } else {
        setShowPoint(false)
      }
    });
  }