Objective-C class -> string like: [NSArray className] -> @“NSArray”

Question

I am trying to get a string name of a class from the class object itself.

// For instance
[NSArray className]; // @\"NSArray\"

I have found

Answer 1

Here's a different way to do it with slightly less typing:

NSString *name = [NSArray description];

Answer 2

NSString *name = NSStringFromClass ([NSArray class]);

You can even go back the other way:

Class arrayClass = NSClassFromString (name);
id anInstance = [[arrayClass alloc] init];

Answer 3

Consider this alternative:

const char *name = class_getName(cls);

It's much faster, since it doesn't have to alloc NSString object and convert ASCII to whatever NSString representation is. That's how NSStringFromClass() is implemented.