import { arrayToCSV } from "https://deno.land/x/30_seconds_of_typescript@v1.0.1/util.ts";
Converts a 2D array to a comma-separated values (CSV) string.
Use Array.prototype.map() and Array.prototype.join(delimiter) to combine individual 1D arrays (rows) into strings.
Use Array.prototype.join('\n') to combine all rows into a CSV string, separating each row with a newline.
Omit the second argument, delimiter, to use a default delimiter of ,.