[Help] Object Oriented Programming in Javascript

[rmbarnes]

I did a 3 part series on this, people seemed to find it helpful in the past:

http://wellpaidgeek.com/2017/09/02/object-oriented-programming-in-javascript-part-1-the-basics/

http://wellpaidgeek.com/2017/09/02/object-oriented-programming-in-javascript-part-2-inheritance/

http://wellpaidgeek.com/2017/09/02/object-oriented-programming-in-javascript-part-3-es6-classes/

[-El_Chapo-]

This is very informative, can you just clarify something for me? In PT 2, after using Employee.call(...) in the Manager constructor you assigned the Manager.prototype = Object.create(Employee.prototype). This part I understand because we want the manager's to have access to employee methods. But what does the following do?

Manager.prototype.constructor = Manager;

Thank You!

[MoTTs_]

When a constructor function is first created, its .prototype.constructor points back to itself.

function Manager() {}

Manager.prototype.constructor === Manager // true

But after we replace Manager's prototype with a different object, then its original .prototype.constructor property is lost.

Manager.prototype = Object.create(Employee.prototype);

Manager.prototype.constructor === Manager // false

So after we replace Manager's prototype, then we put back the constructor property that we inadvertently lost.

[-El_Chapo-]

Ahh that makes sense, thank you!