Userscript to click "Show more..." button on YouTube using TamperMonkey
<p>I would like to click a "show more" button on Youtube users page using Tampermonkey.Also already researched here on the site but found no satisfactory answer to my case.</p>

<p>Html of the buttons:</p>

<pre><code>&lt;button class="yt-uix-button yt-uix-button-size-default yt-uix-button-default load-more-button yt-uix-load-more browse-items-load-more-button" type="button" onclick=";return false;" aria-label="Carregar mais
" data-uix-load-more-href="/browse_ajax?action_continuation=1&amp;amp;continuation=4qmFsgJAEhhVQ2UwSXlLNG50Z2RQVFRqc3hqdnlIUGcaJEVnWjJhV1JsYjNNZ0FEZ0JZQUZxQUhvQk1yZ0JBQSUzRCUzRA%253D%253D" data-uix-load-more-target-id="channels-browse-content-grid"&gt;&lt;span class="yt-uix-button-content"&gt;  &lt;span class="load-more-loading hid"&gt;
      &lt;span class="yt-spinner"&gt;
      &lt;span title="Carregando ícone" class="yt-spinner-img  yt-sprite"&gt;&lt;/span&gt;

Carregando...
  &lt;/span&gt;

  &lt;/span&gt;
  &lt;span class="load-more-text"&gt;
    Carregar mais

  &lt;/span&gt;
&lt;/span&gt;&lt;/button&gt;
</code></pre>

<p>I first tried this code:</p>

<pre><code>// ==UserScript==
// @name         YouTube
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://www.youtube.com/user/*/videos
// @grant        none
// @require https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js
// ==/UserScript==

$(document).ready(
   $(function(){
    document.getElementsByClassName("yt-uix-button yt-uix-button-size-default yt-uix-button-default load-more-button yt-uix-load-more browse-items-load-more-button")[0].click();
});
);
</code></pre>

<p>And also i tried this:</p>

<pre><code>// ==UserScript==
// @name         YouTube
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://www.youtube.com/user/*/videos
// @grant        none
// @require https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js
// ==/UserScript==

$(document).ready(        

    setTimeout(function() {
    document.querySelector('#yt-uix-button yt-uix-button-size-default yt-uix-button-default load-more-button yt-uix-load-more browse-items-load-more-button').click()
}, 1000)
</code></pre>

<p>But both codes seems to not work at all. Could someone give me an explanation to how to fix that? what code i have to put there? i know nothing about JS. </p>