Function that checks if a variable is of type that is passed as parameter in swift

I’d like to write a function that will either doSomething() or doSomethingElse() depending on whether a passed parameter a is of type B. Where B is passed as a second parameter to that function.

My attempt:

func magic<T>(a: Any, b: T.Type) {
    if a is b {
        doSomething()
    } else {
        doSomethingElse()
    }
}

Is that even possible?

>Solution :

The syntax would be:

func magic<T>(a: Any, b: T.Type) {
    if a is T {
        doSomething()
    } else {
        doSomethingElse()
    }
}

💡 But maybe generic is not what you need here. You can have multiple overloads instead:

func magic(someType: SomeType) {
    // do Something
}

func magic(someOtherType: SomeOtherType) {
    // do Something else
}

This way you can be sure about the type at the compile time instead of run-time.