import { ClassForEach } from "https://deno.land/x/easyts@0.1.2/internal/decorator.ts";
Adds all the elements of an container into a string, separated by the specified separator string.
Parameters
A string used to separate one element of the container from the next in the resulting string. If omitted, the array elements are separated with a comma.
optional
callback: MapCallback<T, TO>