hidden comments on plus.google.com for UserScript

g-plus-denoiser.user.js

// ==UserScript==
// @name        G+ denoiser
// @namespace   http://noromanba.flavors.me
// @description hidden comments on plus.google.com for UserScript
// @include     *://plus.google.com/*
// @grant       none
// @noframes
// @run-at      document-start
// @version     2016.3.13.0
// @homepage    https://gist.github.com/noromanba/92fbdb82b94196e69e8d
// @downloadURL https://gist.github.com/noromanba/92fbdb82b94196e69e8d/raw/g-plus-denoiser.user.js
// @license     MIT License http://nrm.mit-license.org/2016
// @author      noromanba   http://noromanba.flavors.me
// @icon        https://upload.wikimedia.org/wikipedia/commons/thumb/e/ee/NYCS-bull-trans-G.svg/32px-NYCS-bull-trans-G.svg.png
// @icon64      https://upload.wikimedia.org/wikipedia/commons/thumb/e/ee/NYCS-bull-trans-G.svg/64px-NYCS-bull-trans-G.svg.png
// ==/UserScript==

// Icon (PD by Flamurai)
// https://commons.wikimedia.org/wiki/File%3ANYCS-bull-trans-G.svg

// Devel
// https://gist.github.com/noromanba/92fbdb82b94196e69e8d


(() => {
    if (!/plus\.google\.com$/.test(location.hostname)) {
        return;
    }

    const addStyle = (() => {
        const parent = document.head || document.body || document.documentElement;

        const style = document.createElement('style');
        style.type = 'text/css';
        parent.appendChild(style);

        return (css) => {
            style.appendChild(document.createTextNode(css + '\n'));
        };
    })();

    addStyle([
        '[role="toolbar"]+[role="button"]',
        '[role="toolbar"]~[role="region"]',
        '[role="complementary"]',
        '.DM',
        '[jscontroller][jsaction] [jsmodel][id^="update-"]'
    ] + '{ display: none !important; }');
})();