Annamalai Saravanan asvny

URLs into Indexed DB, via Service Workers

Let's say you're using Indexed DB for the offline data store for a catalog. One of the object stores contains product images. Wouldn't it be great if you could just have something like this in your catalog page?

<img src="indexeddb/database/store/id">

@kangax's ES6 quiz, explained

@kangax created a new interesting quiz, this time devoted to ES6 (aka ES2015). I found this quiz very interesting and quite hard (made myself 3 mistakes on first pass).

Here we go with the explanations:

Question 1:

(function(x, f = () =&gt; x) {

API	Status Codes
[Twitter][tw]	200, 304, 400, 401, 403, 404, 406, 410, 420, 422, 429, 500, 502, 503, 504
[Stripe][stripe]	200, 400, 401, 402, 404, 429, 500, 502, 503, 504
[Github][gh]	200, 400, 422, 301, 302, 304, 307, 401, 403
[Pagerduty][pd]	200, 201, 204, 400, 401, 403, 404, 408, 500
[NewRelic Plugins][nr]	200, 400, 403, 404, 405, 413, 500, 502, 503, 503
[Etsy][etsy]	200, 201, 400, 403, 404, 500, 503
[Dropbox][db]	200, 400, 401, 403, 404, 405, 429, 503, 507

Links to live by

Networking

Fundamentals

TCP Summary (including three-way handshake description): https://condor.depaul.edu/jkristof/technotes/tcp.html
TCP Headers: http://www.omnisecu.com/tcpip/tcp-header.php
TCP full protocol: http://www.networksorcery.com/enp/protocol/tcp.htm

Network management on Linux

http://www.cyberciti.biz/faq/setting-up-an-network-interfaces-file/

	var Middleware = function() {};

	Middleware.prototype.use = function(fn) {
	var self = this;

	this.go = (function(stack) {
	return function(next) {
	stack.call(self, function() {
	fn.call(self, next.bind(self));
	});

	/* global Tether */
	import Ember from 'ember';

	export default Ember.Component.extend({

	classNames: 'Tool-tip',
	tagName: 'span',

	setup: Ember.on('didInsertElement', function() {
	const parent = this.$().parent();

	'use strict';

	// Licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
	// http://creativecommons.org/publicdomain/zero/1.0/

	(function() {

	// Update 'version' if you need to refresh the cache
	var staticCacheName = 'static';
	var version = 'v1::';

	// Observable is an Union Type, with the following variants
	const Empty = () => ['EMPTY']
	const Cons = (head, tail) => ['CONS', head, tail]
	const Future = promise => ['FUTURE', promise]

	// race between 2 promises; each promise will resolve to a lazy value
	const lazyRace = (p1, p2) => Promise.race([p1,p2]).then(lazy => lazy())

	// function composition
	const compose = (...fns) => (arg) => fns.reduceRight((res, f) => f(res), arg)

	import { combineReducers } from 'redux';
	import users from './reducers/users';
	import posts from './reducers/posts';

	export default function createReducer(asyncReducers) {
	return combineReducers({
	users,
	posts,
	...asyncReducers
	});