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Caleb Kleveter
Treehouse Moderator 37,862 PointsWhat about NSObject?
In this video Amit goes though the different "NS" you might say:
@".."; // NSString @100 // NSNumber @[] // NSArray @{} // NSDictionary
What is NSObject?
2 Answers
Michael Vilabrera
Courses Plus Student 11,252 PointsWe almost never use NSObject in its pure form. It is there to help us allocate and initialize other objects, like arrays/strings/dictionaries.
Caleb Kleveter
Treehouse Moderator 37,862 PointsSo, when do I use NSObject?
Michael Vilabrera
Courses Plus Student 11,252 PointsMichael Vilabrera
Courses Plus Student 11,252 PointsA NSObject is all of these things.
NSObject is pretty much the base of Foundation, which is the means by which we can have strings, numbers, arrays, and dictionaries.
Apple defines it as this: NSObject is the root class of most Objective-C class hierarchies. Through NSObject, objects inherit a basic interface to the runtime system and the ability to behave as Objective-C objects.
To have an NSObject means you can use all these methods on it: +alloc -init -copy -dealloc +new
you can also identify the class using: +class
Of course the amount of things you can do from here are insane, but it is best to get used to building with strings, numbers, arrays, and dictionaries as they will help you understand the later parts that bind them together as NSObject.