+[NSString stringWithString:] — what's the point?

Question

As NSString strings are immutable, what is the value of the stringWithString: class method?

I get the utility when used with NSMutabl

Answer 1

Returns a string created by copying the characters from another given string

[NSString stringWithString:@"some string"]

It is equivalent to

[[[NSString alloc] initWithString:@"some string"] autorelease]