How to determine if two objects are of the same type in Swift

Question

There's lots of past questions relating to this but all the ones I could find are for when you want to determine if an object is of a certain type of class (if myClassInstance is MyClassType {...}).

I want to know how I can determine if object A and object B are of the same class type without having to know/specify what that type is.

Couldn't you try to assign one object to the other or see if they are equal? If that succeeds, they are of the same type. — Daniel Legler, May 08 '17 at 18:25
Specifically see this answer to the above linked Q&A: http://stackoverflow.com/a/40113416/2976878 — Hamish, May 08 '17 at 18:28
@Rahul `.dynamicType` has been changed in Swift 3 to `type(of:)` — Alexander, May 08 '17 at 19:01

DonMag · Answer 1 · 2017-05-08T20:33:10.380

0

I stand corrected - .classForCoder only works for NSObjectProtocol conforming types.

Better answers are available.

~~This might do what you're looking for...~~

class MyClassTypeA: NSObject {

}

class MyClassTypeB: NSObject {

}

var a = MyClassTypeA()
var b = MyClassTypeB()
var c = MyClassTypeB()

print(a.isKind(of: b.classForCoder))
print(a.isKind(of: c.classForCoder))
print(b.isKind(of: c.classForCoder))

edited May 08 '17 at 20:33

answered May 08 '17 at 18:28

DonMag

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This only works for `NSObjectProtocol` conforming types. – Alexander May 08 '17 at 19:00

How to determine if two objects are of the same type in Swift

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