Difficulty: easy · Topic: hashing
Given two strings s and t, return true if t is an anagram of s, and false otherwise.
An Anagram is a word or phrase formed by rearranging the letters of a different word or phrase, typically using all the original letters exactly once.
isAnagram("anagram", "nagaram") -> true
isAnagram("rat", "car") -> false
isAnagram("a", "ab") -> false