Rich-Harris

Stuff I wish I'd known sooner about service workers

I recently had several days of extremely frustrating experiences with service workers. Here are a few things I've since learned which would have made my life much easier but which isn't particularly obvious from most of the blog posts and videos I've seen.

I'll add to this list over time – suggested additions welcome in the comments or via twitter.com/rich_harris.

Use Canary for development instead of Chrome stable

Chrome 51 has some pretty wild behaviour related to console.log in service workers. Canary doesn't, and it has a load of really good service worker related stuff in devtools.

jashkenas

// Here is a proposal for minimalist JavaScript classes, humbly offered.

// There are (at least) two different directions in which classes can be steered.
// If we go for a wholly new semantics and implementation, then fancier classical
// inheritance can be supported with parallel prototype chains for true inheritance
// of properties at both the class and instance level.

// If however, we keep current JavaScript prototype semantics, and add a form that
// can desugar to ES3, things must necessarily stay simpler. This is the direction
// I'm assuming here.

Kilian

/**
 * Annoying.js - How to be an asshole to your users
 *
 * DO NOT EVER, EVER USE THIS.
 *
 * Copyright (c) 2011 Kilian Valkhof (kilianvalkhof.com)
 * Visit https://gist.github.com/767982 for more information and changelogs.
 * Visit http://kilianvalkhof.com/2011/javascript/annoying-js-how-to-be-an-asshole/ for the introduction and weblog
 * Check out https://gist.github.com/942745 if you want to annoy developer instead of visitors
 *

BrendanEich

// A response to jashkenas's fine proposal for minimalist JavaScript classes.

// Harmony always stipulated classes as sugar, so indeed we are keeping current
// JavaScript prototype semantics, and classes would only add a syntactic form
// that can desugar to ES5. This is mostly the same assumption that Jeremy
// chose, but I've stipulated ES5 and used a few accepted ES.next extensions.

// Where I part company is on reusing the object literal. It is not the syntax
// most classy programmers expect, coming from other languages. It has annoying
// and alien overhead, namely colons and commas. For JS community members who

juandopazo

// Based on a gist by @rwaldron
// https://gist.github.com/2897761

function privatize() {
  var map = new WeakMap();
  return function private(obj) {
    var data = map.get(obj);
    if (!data) {
      map.set(obj, data = {});
    }

nzakas

<!--

    Ant target for autogenerating a changelog based on Git tags

    Workflow:
    1. Do all of your checkins for a given version.
    2. When you're ready to officially create a new version, tag it using git tag, such as "git tag v0.3.0".
    3. If you don't already have a file named CHANGELOG in the root directory, make one.
    4. Run "ant changelog.update"

juandopazo

test 123

juandopazo

Storage

Motivation

There are 3 major types of storage is browsers up to date:

• IndexedDB. The future.
• localStorage. Limited in size and can be observed through the storage event.
• WebSQL. Dropped by the W3C but it's still very present in the wild, with notable platforms like iOS and PhoneGap.

juandopazo

YUI.add('router', function (Y) {
/**
Provides URL-based routing for Node

@module app
@submodule router
@since 3.4.0
**/

var QS          = Y.QueryString,

rwaldron

var stream = require("fake-stream-lib"),
    Emitter = require("events").EventEmitter,
    util = require("util");


// Today...

function Device( opts ) {

  this.value = null;