Write a recursive, string -valued function, reverse, that accepts a string and returns a new string consisting of the original string in reverse. For example, calling reverse with the string goodbye returns the string eybdoog.
Reversing a string involves:
No action if the string is empty or has only 1 character (reversing a single character string does not change anything). Thus for empty and 1-character strings , the reversed string is just the string itself.
Otherwise concatenate the last character with the result of reversing the string consisting of the second through the next-to-last character , followed by the first character . In the above example, you would concatenate the ‘e’ (last character of goodbye) with the result of calling reverse on oodby (the string from the second character to the next-to-last), with the ‘g’ (first character ).