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JavaScript Object-Oriented JavaScript (2015) Prototypal Inheritance Setting Up the Prototype Chain

Adam Siwiec
Adam Siwiec
12,070 Points
Posted by Adam Siwiec
Adam Siwiec
12,070 Points

I dont understand what I need to do.

So I tried to figure out the challenge, but I couldnt get very far.

Could someone explain to me what I need to do and why it works?

person.js 
function Person(firstName, lastName) {
  this.firstName = firstName;
  this.lastName = lastName;
}

Person.prototype.fullName = function() {
 return this.firstName + " " + this.lastName; 
};
teacher.js 
function Teacher(firstName, lastName, roomNumber) {
  Person.call(this, firstName, lastName);
  this.room = roomNumber;
}

Object.create(Person.prototype);

1 Answer

Colton Ehrman
Colton Ehrman
Courses Plus Student 5,859 Points

Ok, so for the first step, you are basically utilizing the Person constructor to setup your firstName and lastName properties for the Teacher constructor (instead of having to do this.firstName = and this.lastName = )

Now for the second step you have the write idea with Object.create, but now you want to take that statement and assign it to Teacher's prototype... if that makes sense?