Cookie Editor Script for Tamper Monkey

cookie.js

// ==UserScript==
// @name         Cookie Editor
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  This script allows you to control cookies from the console.
// @author       alexgurrola <github.com/alexgurrola>
// @match        *://*/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=github.com
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // seconds conversions
    function seconds(str) {
        if (typeof str === 'number') {
            return str;
        }
        if (typeof str !== 'string') {
            return null;
        }
        const timePairs = str.match(/([\d+.]*[\d+])(?=[sSmMhHdDwWyY]+)([sSmMhHdDwWyY]+)/gi);
        if (!timePairs) {
            return null;
        }
        const digest = /([\d+.]*[\d+])(?=[sSmMhHdDwWyY]+)([sSmMhHdDwWyY]+)/i;
        let time;
        let unit;
        let value;
        let data = 0;
        timePairs.forEach((timePair) => {
            time = digest.exec(timePair);
            value = parseFloat(time[1]);
            unit = time[2];
            if (isNaN(value)) {
                return;
            }
            switch (time[2]) {
                case 's':
                    unit = 1;
                    break;
                case 'm':
                    unit = 60;
                    break;
                case 'h':
                    unit = 3.6e+3;
                    break;
                case 'd':
                    unit = 8.64e+4;
                    break;
                case 'w':
                    unit = 6.048e+5;
                    break;
                case 'y':
                    unit = 3.1558149504e+7;
                    break;
                default:
                    unit = 0;
            }
            data += value * unit;
        });
        return data;
    }

    // cookie
    function cookie(name, value, expires, path, domain, secure, sameSite) {
        const request = {
            name,
            value,
            expires,
            path: path || '/',
            domain,
            secure,
            sameSite
        };
        let data;
        if (typeof request.value === 'undefined') {
            const search = new RegExp('(?:^' + request.name + '|;\\s*' + request.name + ')=(.*?)(?:;|$)', 'g');
            data = search.exec(document.cookie);
            return null === data ? null : data[1];
        }
        data = request.name + '=' + escape(request.value) + ';';
        if (request.expires) {
            if (request.expires instanceof Date) {
                if (isNaN(request.expires.getTime())) {
                    request.expires = new Date();
                }
            }
            else {
                request.expires = new Date(new Date().getTime() + conversion_1.seconds(request.expires) * 1000);
            }
            data += 'expires=' + request.expires.toUTCString() + ';';
        }
        if (request.path) {
            data += 'path=' + request.path + ';';
        }
        if (request.domain) {
            data += 'domain=' + request.domain + ';';
        }
        data += `secure=${request.secure === false ? 'false' : 'true'};`;
        data += `sameSite=${request.sameSite || 'Lax'};`;
        console.log('new cookie:', data);
        document.cookie = data;
    }

    // hoist to window
    window.cookie = cookie

    // write to console:
    console.log('cookie functions are now available!')
})();