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, using all the original letters exactly once.
The comparison is case-insensitive.
Input: Two comma-separated strings: s and t.
Output: Return 'true' if t is an anagram of s, otherwise 'false'.
Input: listen,silent
Output: true
Explanation: Both words contain the same letters: e, i, l, n, s, t → anagram.Input: hello,world
Output: false
Explanation: The character counts differ significantly → not anagram.Input: anagram,nagaram
Output: true
Explanation: Both use a×3, n×1, g×1, r×1, m×1 → anagram.0 <= s.length, t.length <= 10^5s and t consist of lowercase/uppercase English lettersComparison is case-insensitive