import { isSorted } from "https://deno.land/x/30_seconds_of_typescript@v1.0.1/util.ts";
Returns 1 if the array is sorted in ascending order, -1 if it is sorted in descending order or 0 if it is not sorted.
Calculate the ordering direction for the first two elements.
Use Object.entries() to loop over array objects and compare them in pairs.
Return 0 if the direction changes or the direction if the last element is reached.