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Super-fast alternative to Babel for when you can target modern JS runtimes

CoffeeScript in, ES6 out

An Android app that provides a visual interface for creating and evaluating lambda calculus expressions

Math-themed single-serving site

Garmin Connect IQ data field showing seconds ahead/behind pace

A golang package that allows you to access unexported functions from other packages

A Python in-memory test stub for BigQuery

Audio-only Khan Academy app, built for Khan Academy Hackathon 2015

An unofficial experimental port of the Google App Engine SDK to Python 3, using Managed VMs

A simple quine written in golang

The beginnings of a toy interpreter for Go, written in Go

Demonstrates an algorithm that splits a colored Delaunay triangulation.

A toy (partial) Python interpreter written in Python

Collect statistics on ?. syntax used in CoffeeScript projects

JavaScript-friendly fork of CoffeeScript's cake tool

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

Alan Pierce's Blog: www.alangpierce.com

Example Android app built with React Native that follows Android best practices for playing audio

Sources for the debugger used in PyDev & PyCharm

Submit stacked diffs to GitHub on the command line

Datafield Garmin connect iq Battery and GPS

Testing GitHub integrations

Bring your JavaScript into the future.

A Type[d Java]Script to WebAssembly compiler 🚀

:tropical_fish: Babel is a compiler for writing next generation JavaScript.

Compile TypeScript, Flow, JSX etc with Sucrase

Very fast and lightweight, standards-compliant, self-hosted javascript parser with high focus on both performance and stability

Tracking ECMAScript Proposals

🔬 A web-based viewer for sampling profiles

Command line interface for Phabricator

A better AST for CoffeeScript, inspired by CoffeeScriptRedux.

Stupid lexer for CoffeeScript.

Manipulate strings like a wizard

Add source maps of multiple files, offset them and then combine them into one source map.

Atom Package Manager

A moment.js plugin to display human-readable date/time ranges

:sparkles: A plugin which allows you to run a full instance of TSLint within ESLint

A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows to load parts for the application on demand. Through "loaders," modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.

Add variable declarations for global assignments.

Adds static typing to JavaScript to improve developer productivity and code quality.

JavaScript syntax tree transformer, nondestructive pretty-printer, and automatic source map generator

A fully pluggable tool for identifying and reporting on patterns in JavaScript.

A JavaScript codemod toolkit.

Unofficial Airbnb ESLint config, following their ES5 style guide.

Unfancy JavaScript

No description.

Traverse ASTs generated by decaffeinate-parser.

Codemod scripts to transform code to next generation JS

React codemod scripts

Sample code demonstrating absolute imports using NODE_PATH

Reduced test case for https://github.com/facebook/react-native/issues/7941