YouTube: Hide Live Chat

yt-hide-live-chat.user.js

// ==UserScript==
// @name        YouTube: Hide Live Chat
// @namespace   https://gist.github.com/CairX
// @version     0.1
// @grant       none
// @include     https://www.youtube.com/*
// @run-at      document-end
// ==/UserScript==

// An alternative approach would be:
// document.getElementById("chat").remove();
//
// However that does not work as YouTube manipulates the DOM after
// the page is loaded and therefore the comments-element doesn't exist
// at the time of execution.

var style = document.createElement("style");
style.innerHTML = "#chat { display: none; }";
document.body.appendChild(style);