JavaScript tools, Promises & Observables

kriskowal/q: A tool for creating and composing asynchronous promises in JavaScript @ GitHub


ReactiveX.io

Reactive-Extensions/RxJS: The Reactive Extensions for JavaScript @ GitHub

JSLint: The JavaScript Code Quality Tool

JSHint, a JavaScript Code Quality Tool

systemjs/systemjs: Universal dynamic module loader @ GitHub

classes: 

Rapid JavaScript Training 

JavaScript Design Patterns | Pluralsight

Modern, Modular JavaScript with SystemJS and jspm | Pluralsight