-(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