Flatten nested arrays.
npm install array-flatten --save
import { flatten } from "array-flatten"; flatten([1, [2, [3, [4, [5], 6], 7], 8], 9]); //=> [1, 2, 3, 4, 5, 6, 7, 8, 9] (function() { flatten(arguments); //=> [1, 2, 3] })(1, [2, 3]);
MIT