How to remove apostrophe and whitespace in NSString

Question

NSString *str = @"mario's test";
NSString *stringWithoutSpaces = [str stringByReplacingOccurrencesOfString:@" " withString:@""];

With this function I can remove the white space, but I also need to remove the apostrophe ' :

stringWithoutSpaces = "mariostest"

Answer 1

*stringWithoutSpaces = [[str stringByReplacingOccurrencesOfString:@" " withString:@""]
                             stringByReplacingOccurrencesOfString:@"'" withString:@""];