Finds and returns the range of the first occurrence of a given string within the receiver.
Original signature is '- (NSRange)rangeOfString:(NSString *)aString'
Available in Mac OS X v10.0 and later.


- aString (NSString)
- The string to search for. This value must not be nil.

An NSRange structure giving the location and length in the receiver of the first occurrence of aString. Returns {NSNotFound, 0} if aString is not found or is empty (@"").

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)