===== lowercaseString ===== -(NSString *)lowercaseString; Returns lowercased representation of the receiver. ===== ObjC Sourcecode Example ===== NSString *myString=@"HELLO WORLD"; myString=[myString lowercaseString]; NSLog(@"%@",myString); ==== Output for this example code ==== 2012-04-15 12:52:41.210 FoundationNSString[741:403] hello world