Trim spaces from end of a NSString

Question

I need to remove spaces from the end of a string. How can I do that? Example: if string is "Hello " it must become "Hello"

Answer 1

Taken from this answer here: https://stackoverflow.com/a/5691567/251012

- (NSString *)stringByTrimmingTrailingCharactersInSet:(NSCharacterSet *)characterSet {     NSRange rangeOfLastWantedCharacter = [self rangeOfCharacterFromSet:[characterSet invertedSet]                                                                options:NSBackwardsSearch];     if (rangeOfLastWantedCharacter.location == NSNotFound) {         return @"";     }     return [self substringToIndex:rangeOfLastWantedCharacter.location+1]; // non-inclusive } 

Answer 2

Another solution involves creating mutable string:

//make mutable string NSMutableString *stringToTrim = [@" i needz trim " mutableCopy];  //pass it by reference to CFStringTrimSpace CFStringTrimWhiteSpace((__bridge CFMutableStringRef) stringToTrim);  //stringToTrim is now "i needz trim"