Which code segment should you use?

You are creating a JavaScript object that represents a customer.

You need to extend the Customer object by adding the GetCommission() method.

You need to ensure that all future instances of the Customer object implement the GetCommission() method.

Which code segment should you use?

A . Option A
B . Option B
C . Option C
D . Option D

View Answer

Answer: D

Explanation:

* Object.prototype.constructor

Returns a reference to the Object function that created the instance’s prototype. Note that the value of this property is a reference to the function itself, not a string containing the function’s name. The value is only read-only for primitive values such as 1, true and "test".

* The constructor property is created together with the function as a single property of func.prototype.

Reference: Object.prototype.constructor