arey Experimental module that uses ES6 classes to extend Array. Try it: npm install arey let Arey = require("arey").Arey; let list = new Arey(); Arey.of(1,2,3); // [1,2,3] Arey.isArray([1,2,3]) // true .diff([1,2,3], [3,4,5]) // [1,2] P.S: More methods are on it's way.