// ==UserScript==// @name            Youtube - toggle related button// @description     Creates a button on the top header to show/hide related section// @namespace       https://greasyfork.org/en/users/758587-barn852// @version         3.0.1// @author          barn852// @license         MIT// @match           *://*.youtube.com/*// @include         *://*.youtube.com/watch*// @grant           none// @require         https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js// @run-at          document-end// @noframes// ==/UserScript==(function(){'use strict';const callback = () => $('#related').hide();const observer = new MutationObserver(function(mutations){mutations.forEach(function(mutation){if (mutation.type === 'childList'){mutation.addedNodes.forEach(function(node){callback();});}});});observer.observe(document.body, {'childList': true, 'subtree' : true});let target = document.querySelectorAll('body')[0];let options = {'childList': true, 'subtree' : true};let button = document.createElement('button');button.innerHTML = '<svg width="24" height="24" viewBox="0 0 22 22"><g fill="currentColor"><path d="M4 14h4v-4H4v4zm0 5h4v-4H4v4zM4 9h4V5H4v4zm5 5h12v-4H9v4zm0 5h12v-4H9v4zM9 5v4h12V5H9z"/></g></svg>';button.style = ` background: transparent; border: 0; color: rgb(96,96,96); outline: 0; cursor: pointer; padding-left: 24px; padding-right: 24px; `;let hide = true;button.onclick = ()=>{hide = !hide;if (hide){if ($('#related')[0])$('#related').hide()elseobserver.observe(target, options);console.log(`hide`);}else{observer.disconnect();console.log(`show`);$('#related').show();}}let waitButton = setInterval(() => {if ($('#end').length) {clearInterval(waitButton);let menu = $('#end')[0];menu.insertBefore(button, menu.lastElementChild);}}, 500);console.log('inserted');} )()