Write a function that returns true if exactly one word in the array differs in length from the rest. Return false in all other cases.
oddOneOut(["silly", "mom", "let", "the"]) ➞ true
oddOneOut(["swanky", "rhino", "moment"]) ➞ true
oddOneOut(["the", "them", "theme"]) ➞ false
oddOneOut(["very", "to", "an", "some"]) ➞ false
The length of the array will always have at least three or more words.