import { unionBy } from "https://deno.land/x/30_seconds_of_typescript@v1.0.1/util.ts";
Returns every element that exists in any of the two arrays once, after applying the provided function to each array element of both.
Create a Set
by applying all fn
to all values of a
.
Create a Set
from a
and all elements in b
whose value, after applying fn
does not match a value in the previously created set.
Return the last set converted to an array.