Problem solved already :-)

My request is realtively simple - to receive feedback to my plan for solving the palindrome challenge. (
First thing will be to change all chars to small, since this is very easy to implement. Second step will be to filter out anything that is not a-z chars. Since I don’t know a specific function that can achieve this I will convert the string to an array of chars, and filter each char which is not ‘a’ or ‘b’ or ‘c’…or ‘z’, I will actually mention and check all 26 English letters. If there is a liberary function that can do that please let me know. Then I will reverse the order of the array. If the filltered array and the reversed array are equal than it is a palindrome.
Any Feedback?
Thanks in advance,

Seems you can’t delete a post. The problem however was solved.