js 监听localStorage、sessionStorage

localStorage.setItem = function (key, newValue) {
    var setItemEvent = new Event("setItemEvent");
    setItemEvent.type = "localStorage";
    setItemEvent.newValue = newValue;
    window.dispatchEvent(setItemEvent);
}
sessionStorage.setItem = function (key, newValue) {
    var setItemEvent = new Event("setItemEvent");
    setItemEvent.type = "sessionStorage";
    setItemEvent.newValue = newValue;
    window.dispatchEvent(setItemEvent);
}
window.addEventListener("setItemEvent", function (e) {
    console.log(e);
});
window.localStorage.setItem("name", "123")
window.sessionStorage.setItem("name", "456")