重定向到 javascript 中的另一个页面时，LocalStorage 未更新

Question

I'm trying to save a value in localStorage and then the page is redirected to another page. but if the value was saved then I enter another value, when I go to the other page the value saved is the first one. for example, if the value was "red" in the localStorage then I enter the value "blue" after the page is redirected I find that the value saved is "red".

<input type="text">
<button>click </button>

$('button').on('click', function () {

        callbackLogFun(); 

    });

    function callbackLogFun() { 

    localStorage.setItem('user', JSON.stringify($('input').val()));

    callRedirect(); 
 } 

function callRedirect() { 

     window.location.href = "sec-page.html";

} 

and this how I call it on the second page

localStorage.getItem('user');

Answer 1

If it's really a matter of not having enough time to save to localStorage before the page is redirected then you can make the calls to localStorage synchronous:

const localStorageAsync = {
    set: function (key, value) {
        return Promise.resolve().then(function () {
            localStorage.setItem(key, value);
        });
    },
    get: function (key) {
        return Promise.resolve().then(function () {
            return localStorage.getItem(key);
        });
    }
};

localStorageAsync
    .set('user', JSON.stringify($('input').val()))
    .then(function() {
        callRedirect();
    })