IDTMessaging Test

RevertString.m

// 1. Write a function which takes a string as an argument and returns the string reversed. For example, "abcdef" becomes "fedcba"
- (NSString *)revertString:(NSString *)initialString {
    NSMutableString *revertedString = [[NSMutableString alloc] initWithString:@""];
   
    for (NSInteger i = initialString.length - 1; i >= 0; i--) {
        char currentChar = [initialString characterAtIndex:i];
        [revertedString appendString:[NSString stringWithFormat:@"%c", currentChar]];
    }
    return revertedString;
}