ysmood/yaku

Full featured Promises/A+ implementation with exceptionally good performance

Standard library

A lightweight library that provides tools for organizing asynchronous code

ECMAScript 6 (Harmony) compatibility shims for legacy JavaScript engines

simple, flexible, fun test framework

Headless WebKit with JS API

A library for promises (CommonJS/Promises/A,B,D)

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

A simple promise based function for unit tests.

A light weight set of handy tools for real world program.

Compliance test suite for ECMA-262 Promises

A small polyfill for Object.setprototypeof

My ES6 Promise Implementation