import { arrayFlatten } from "https://deno.land/x/polkadot@0.2.19/util/array/flatten.ts";
Examples
import { arrayFlatten } from 'https://deno.land/x/polkadot@0.2.19/util/mod.ts';
arrayFlatten([[1, 2], [3, 4], [5]]); // [1, 2, 3, 4, 5]
Parameters
arrays: readonly T[][]