How to remove whitespace in a string?

Question

I have a string say \"Allentown, pa\"

How to remove the white space in between , and pa using objective c?

Answer 1

- (NSString *)removeWhitespaces {
  return [[self componentsSeparatedByCharactersInSet:
                    [NSCharacterSet whitespaceCharacterSet]]
      componentsJoinedByString:@""];
}