Array.prototype.includesintermediateconst arr = [1, 2, 3, 1, 2]
arr.includes(1, 2) // → true (starts searching at index 2)Pass a second argument to includes() to start the search from a specific index.
The optional second argument fromIndex specifies where to start searching. This allows you to skip earlier occurrences.
Challenge: Implement hasAfter(arr, val, from) that uses arr.includes(val, from) to check for val starting at index from.
hasAfter([1, 2, 3, 2, 1], 2, 2) // → true (found at index 3)
hasAfter([1, 2, 3, 2, 1], 2, 4) // → false (no 2 at index >= 4)