ES6

• es6features - Overview of ECMAScript 6 features.
• es6-features - ECMAScript 6: Feature Overview & Comparison.
• es6katas - Learn ES6 by doing it. Fix failing tests. Keep all learnings.
• es6-cheatsheet - ES2015 [ES6] cheatsheet containing tips, tricks, best practices and code snippets.
• ECMAScript 6 compatibility table - Compatibility tables for all ECMAScript 6 features on a variety of environments.
• Babel (Formerly 6to5) - Turn ES6+ code into vanilla ES5 with no runtime.
• Traceur compiler - ES6 features > ES5. Includes classes, generators, promises, destructuring patterns, default parameters & more.