tamper monkey script for youtube/netflix playback speed (to blast through movies @130%), numpad 1/3 to lower/increase speed by 10%

playback-speed.js

// ==UserScript==
// @name         Netflix playback speed
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  numpad 1, 2, 3 for --0.1, 0, ++0.1
// @author       Kevin Cameron
// @include      https://www.netflix.com/*
// @grant        none
// ==/UserScript==

(function() {
    "use strict";

    var node = document.createElement("div"),
        style = {
            on : "color:white; position: relative; z-index: 1;",
            off : "opacity: 0;"
        };

    node.style = style.off;
    document.body.appendChild(node);

    addEventListener("keydown", (e) => {
        let video = document.querySelectorAll("video")[0];

        if(e.keyCode === 97) {
            video.playbackRate = video.playbackRate - 0.1;
        } else if(e.keyCode === 99) {
            video.playbackRate = video.playbackRate + 0.1;
        }

        node.innerText = `playbackRate: ${video.playbackRate.toFixed(2)}`;

        node.style = style.on;

        setTimeout(() => { node.style = style.off; }, 1000);
    });
})();