Is the string a palindrome

Write a function isPalindrome(text) that returns true when the string text is a palindrome and false otherwise.

• text is a string of any length. It can be empty.
• The compare is exact: every character counts, spaces too, also at the start or the end. 'ab ba' is a palindrome, 'top spot' is not.
• Letter case matters: 'Abba' is not a palindrome, because 'A' and 'a' are different characters.
• The empty string and a string of one character are palindromes.
• Return a boolean, not a string such as 'yes'.