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

Marek Nagrodzki
Marek Nagrodzki
860 Points

Is it a problem with the checking script or am I doing it wrong?

"Bummer! You're missing 'Person.call()' in Teacher literal"

function Teacher(firstName, lastName) { Person.call(this, firstName, lastName); }

Could you please explain what am I doing wrong?

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

function Teacher(firstName, lastName) {
  Person.call(this, firstName, lastName);
}

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

1 Answer

Marek Nagrodzki
Marek Nagrodzki
860 Points

I guess it's trash post since now I can see that there is another file within the exercise.