node-core-js 2.4.1-2 (amd64 binary) in ubuntu bionic

 Includes polyfills for ECMAScript 5, ECMAScript 6: promises, symbols,
 collections, iterators, typed arrays, ECMAScript 7+ proposals, setImmediate,
 etc. Some additional features such as dictionaries or extended partial
 application. You can require only needed features or use it without global
 namespace pollution.
 .
 Node.js is an event-based server-side JavaScript engine.