Node.js — ECMAScript 2015 (ES6) and beyondECMAScript 2015 (ES6) and beyond Node.js is built against modern versions of V8. By keeping up-to-date with the latest releases of this engine, we ensure new features from the JavaScript ECMA-262 specification are brought to Node.js developers in a timely manner, as well as continued performance and stability improvements. All ECMAScript 2015 (ES6) features are split into three groups for shipping
AtomエディタでPHP(＋HTML)がシンタックスハイライトされないのを解消 - Qiita
