addyosmani

{
    "name": "my-app",
    "version": "1.0.0",
    "description": "My test app",
    "main": "src/js/index.js",
    "scripts": {
        "jshint:dist": "jshint src/js/*.js",
        "jshint": "npm run jshint:dist",
        "jscs": "jscs src/*.js",
        "browserify": "browserify -s Validating -o ./dist/js/build.js ./lib/index.js",

addyosmani

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

addyosmani

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

 Copyright (C) 2014 ADDY OSMANI <addyosmani.com>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

addyosmani

/*
* memoize.js
* by @philogb and @addyosmani
* further optimizations by @mathias
* Released under an MIT license.
*/
function memoize( fn ) {  
    return function () {  
        var args = Array.prototype.slice.call(arguments),  
            hash = "",  

addyosmani

// https://hg.mozilla.org/mozilla-central/rev/2f9043292e63
// Used to detect minification for automatic pretty printing
const SAMPLE_SIZE = 30; // no of lines
const INDENT_COUNT_THRESHOLD = 20; // percentage

function isMinified (str) {
  let isMinified;
  let lineEndIndex = 0;
  let lineStartIndex = 0;
  let lines = 0;

addyosmani

/**
    Code copyright Dustin Diaz and Ross Harmes, Pro JavaScript Design Patterns.
**/

// Constructor.
var Interface = function (name, methods) {
        if (arguments.length != 2) {
            throw new Error("Interface constructor called with " + arguments.length + "arguments, but expected exactly 2.");
        }
        this.name = name;

addyosmani

/*

limitLoop.js - limit the frame-rate when using requestAnimation frame
Released under an MIT license.

When to use it?
----------------
A consistent frame-rate can be better than a janky experience only 
occasionally hitting 60fps. Use this trick to target a specific frame-
rate (e.g 30fps, 48fps) until browsers better tackle this problem 

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.

addyosmani

Problem: How can we preprocess JavaScript (at build-time or on the server-side) so engines like V8 don't have to spend as much time in Parse? This is a topic that involves generating either bytecode or a bytecode-like-abstraction that an engine would need to accept. For folks that don't know, modern web apps typically spend a lot longer in Parsing & Compiling JS than you may think.

• Yoav: This can particularly be an issue on mobile. Same files getting parsed all the time for users. Theoretically if we moved the parsing work to the server-side, we would have to worry about it less.
• One angle to this problem is we all ship too much JavaScript. That's one perspective. We could also look at preprocessing.
• We've been talking about this topic over the last few weeks a bit with V8. There were three main options proposed.
• 1. Similar to what optimize-js does. Identify IIFEs and mark them as such so the browser and VMs heuristics will catch them and do a better job than today. optimize-js only tackles IIFE bu

addyosmani

Workbox runtime caching recipes

Your Service Worker script will need to import in Workbox and initialize it before calling any of the routes documented in this write-up, similar to the below:

importScripts('workbox-sw.prod.v1.3.0.js');
const workbox = new WorkboxSW();

// Placeholder array populated automatically by workboxBuild.injectManifest()