import { deepFlatten } from "https://deno.land/x/30_seconds_of_typescript@v1.0.1/util.ts";
Deep flattens an array.
Use recursion.[polyfill for Array.prototype.flat
]
Use Array.prototype.concat()
with an empty array ([]
) and the spread operator (...
) to flatten an array.
Recursively flatten each element that is an array.