i am taking to this stage but doesn’t understand anything here;
true if the given string is a palindrome. Otherwise, return
A palindrome is a word or sentence that’s spelled the same way both forward and backward, ignoring punctuation, case, and spacing.
Note: You’ll need to remove all non-alphanumeric characters (punctuation, spaces and symbols) and turn everything into the same case (lower or upper case) in order to check for palindromes.
We’ll pass strings with varying formats, such as
RaceCar , and
race CAR among others.
We’ll also pass strings with special symbols, such as
2A3 3a2 , and