JavascriptCode demo sites (Liveweave) (Codepen) (JSBin) (JSFiddle) (Plunker) (Codeply) (Codepad) (repl.it) Mozilla HTML element referenceDOM eventsw3schools (html) (css) (bootstrap) (javascript) (jquery) HTML/CSSEloquent JS (You don't know JS) (Javascript the definitive guide) Javascript visualizerChrome console API (Firebug console API) JS Lint (JSON Lint) Can I use? (Kangax compatibility table)
Code demo sites
Mozilla HTML element reference
DOM events
w3schools
HTML/CSS
Eloquent JS
Javascript visualizer
Chrome console API
JS Lint
Can I use?
Frameworks and Librariestodomvc examplesRxJS (Book)
todomvc examples
RxJS
Web DevelopmentWeb Development 101
Web Development 101
Web Servers and ServicesNode.js (http-server) OSX apacheServerless single-page appsWeb Development Recipes
Node.js
OSX apache
Serverless single-page apps
Web Development Recipes