Here is the interview question prompt, presented for reference.

In Object-Oriented programming, an instance represents an object which is an instantiation of a class. An object can also be an instance of a given class A if it is instantiated from a class B that extends the class A.

In a non-programming context, you could think of "cat" as a class and your particular cat as an instance of that class.

Many object-oriented programming languages have a built-in way of checking if a given object is an instance of a given class, and in Javascript this can be achieved by checking if the prototype property of a constructor appears anywhere in the prototype chain of an object.

Can you implement a function that will check if an object is an instance of a class, and will accept the object and the class as parameters?

The function should work like the following example:

class A {}
class B extends A {}

let objB = new B()
instanceOfClass(objB , B) // true
instanceOfClass(objB, A) // true

class C {}
instanceOfClass(objB, C) // false


You can see the full challenge with visuals at this link.