nfarina

//
// Quick & Dirty Google Cloud Storage emulator for tests. Requires
// `stream-buffers` from npm. Use it like this:
//
// `new MockStorage().bucket('my-bucket').file('my_file').createWriteStream()`
//

class MockStorage {
  buckets: {[name: string]: MockBucket};

chicoxyzzy

You can install Node Nightlies/RCs via nvm using NVM_NODEJS_ORG_MIRROR environment variable.

Install latest Node RC

NVM_NODEJS_ORG_MIRROR=https://nodejs.org/download/rc/ nvm i node

Install latest Node.js Nightly

NVM_NODEJS_ORG_MIRROR=https://nodejs.org/download/nightly/ nvm i node

DaBs

var str = 'class ಠ_ಠ extends Array {constructor(j = "a", ...c) {const q = (({u: e}) => {return { [`s${c}`]: Symbol(j) };})({});super(j, q, ...c);}}' + 
          'new Promise((f) => {const a = function* (){return "\u{20BB7}".match(/./u)[0].length === 2 || true;};for (let vre of a()) {' +
          'const [uw, as, he, re] = [new Set(), new WeakSet(), new Map(), new WeakMap()];break;}f(new Proxy({}, {get: (han, h) => h in han ? han[h] ' + 
          ': "42".repeat(0o10)}));}).then(bi => new ಠ_ಠ(bi.rd));';

try {
  eval(str);
} catch(e) {
  alert('Your browser does not support ES6!')
}

branneman

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

oslego

//
// returns a list of all elements under the cursor
//
function elementsFromPoint(x,y) {
	var elements = [], previousPointerEvents = [], current, i, d;

        // get all elements via elementFromPoint, and remove them from hit-testing in order
	while ((current = document.elementFromPoint(x,y)) && elements.indexOf(current)===-1 && current != null) {
          
            // push the element and its current style

addyosmani

Update May 2017

Eric Bidelman has documented some of the common workflows possible with headless Chrome over in https://developers.google.com/web/updates/2017/04/headless-chrome.

Update

If you're looking at this in 2016 and beyond, I strongly recommend investigating real headless Chrome: https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md

Windows and Mac users might find using Justin Ribeiro's Docker setup useful here while full support for these platforms is being worked out.

paulirish

// http://paulirish.com/2011/requestanimationframe-for-smart-animating/
// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating

// requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel

// MIT license

(function() {
    var lastTime = 0;
    var vendors = ['ms', 'moz', 'webkit', 'o'];