Check if string is palindrome in objective c

Question

I\'m trying to check if a string is palindrome or not using objective c. I\'m new to programming without any experience in other programming languages so bear with me please

Answer 1

var str: NSString = "123321"
var length = str.length
var isPalindrome = true

for index in 0...length/2{
    if(str.characterAtIndex(index) != str.characterAtIndex(length-1 - index)){
        print("\(index )not palindrome")
        isPalindrome = false
        break
    }
}

print("is palindrome: \(isPalindrome)")