To determine if a string is a palindrome in Swift, one approach is to compare the string with its reverse.
Here's the code that uses this algorithm:
main.swift114 chars5 lines
The isPalindrome
function takes a string as a parameter and returns a boolean value indicating whether the string is a palindrome.
Inside the function, we use the reversed()
method of String
to get a reversed version of the input string. Then we create a new string with the reversed characters and assign it to the reversed
constant.
Finally, we compare the original string (str
) with the reversed string (reversed
) and return true
if they match, or false
if they don't.
Here's an example usage of the function:
main.swift130 chars7 lines
The output of this code will be "racecar is a palindrome".
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