Is it possible to write information in json?

Question

JavaScript

Can I write data to json so that it is saved when the page is refreshed, or can I change existing data? I need to make the schedule local!

Answer 1

Something like this. Create your schedule, describe the manifesto. Store your json in localStorage after serializing it. Everything works
https://developer.mozilla.org/en/docs/DOM/Using_we...
https://developer.mozilla.org/en/docs/Web/%D0%9C%D...
https:/ /habr.com/ru/post/275849/

Answer 2

there are plugins for creating plugins https://www.tampermonkey.net/
for example, a script that cuts out an assistant on aliexpress

// ==UserScript==
// @name         removeEvaDialog
// @namespace    aliexpress.com
// @version      0.1
// @description  Removes robot dialog/helper on aliexpress.com
// @author       [email protected]
// @include      https://*.aliexpress.*/*
// @grant        unsafeWindow
// @run-at       document-body
// ==/UserScript==
(function() {
    'use strict';
    let timerDialog = setInterval(
        function() {
            let dialog = document.getElementById('J_xiaomi_dialog');
            if (dialog) {
                dialog.remove();
                clearInterval(timerDialog);
           }
        },
        250
    );
})();