Crafty, previously known as CraftyJS, is a small, simple, and lightweight game engine that can greatly help you build prototypal or fully-featured 2D HTML5 games. Crafty is also open-source and completely free. Its code is hosted openly on GitHub.com and is distributed under the MIT or GPL license.
A Crafty.js game is build up of entities -- the player character, enemies, and obstacles are all represented this way.
Sinon provides spies, stubs, and mocks. They’re all useful as fakes in tests. They come with essential differences for what they’re helpful in doing and how they work.
Test stubs are functions (spies) with pre-programmed behavior.
They support the full test spy API in addition to methods which can be used to alter the stub’s behavior.
As spies, stubs can be either anonymous or wrap existing functions. When wrapping an existing function with a stub, the original function is not called.
var stub = sinon.stub();
npm install sinon
Video for Sinon.JS https://www.youtube.com/watch?v=SvudHPTEsIk
Loads any module format when running the ~15KB development build.
Loads ES modules compiled into the System.register module format for production with exact circular reference and binding support
Supports RequireJS-style map, paths, and bundles configuration.
Built with the ES Module Loader project, which is based on principles and APIs from the WhatWG Loader specification, modules in HTML and NodeJS.
Supports IE9+ provided a promises polyfill is available in the environment.
System.js however is a pretty good replacement for require.js. The config is robust, the bundling API is reasonable, and if you have dynamic loading scenarios, especially where you don't know the resources at bundling time, it's really a good client loader.
The above definition may be ambiguous, in simple terms, PhantomJS is a web browser without a graphical user interface.
Since PhantomJS is not usable when it comes to surfing the web, it has a whole set of features that developers love and use for many purposes.
Multiplatform, available on major operating systems: Windows, Mac OS X, Linux, and other Unices.
Pure headless (no X11) on Linux, ideal for continuous integration systems. Also runs on Amazon EC2, Heroku, and Iron.io.
Video for Phantom.Js https://www.youtube.com/watch?v=6Y3ugEFU0uU