Script: Code umwandeln und einbinden in bestehenden

// ==UserScript==
// @name         Twitch String checker0
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Checks for given strings, if not found, reloads the page after a given amount of time.
// @author       Manipulate
// @match        https://www.twitch.tv/thewantedmovie2014
// @icon         https://www.google.com/s2/favicons?sz=64&domain=twitch.tv
// @grant        none
// ==/UserScript==

(function() {
    'use strict';  

    const timeToWait = 15; // in seconds
    const lookFor = ["LIVE", "5000"]; // Change this to find different strings  

    ready(checkForString);

    function checkForString() {
        for (let stringToSearch of lookFor) {
            if (document.body.innerHTML.search(stringToSearch) > 0) {
                alert("Found: " + stringToSearch); // stops the page for reloading  

                // do other cool stuff here

                return;
            }
        }
        console.log("String(s) not found, trying again in a few seconds");  
        setTimeout(() => checkForString(), timeToWait * 1000);
    }

    // gotten from stackoverflow
    function ready(fn) {
        if (typeof fn !== 'function') {  
            throw new Error('Argument passed to ready should be a function');  
        }

        if (document.readyState != 'loading') {  
            fn();
        } else if (document.addEventListener) {
            document.addEventListener('DOMContentLoaded', fn, {  
                once: true // A boolean value indicating that the listener should be invoked at most once after being added. If true, the listener would be automatically removed when invoked.
            });
        } else {
            document.attachEvent('onreadystatechange', function() {  
                if (document.readyState != 'loading')  
                    fn();
            });
        }
    }
})();

$(document).ready(function () {
      setTimeout(function () {
        history.go(0);
      }, 15000);
    });