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

Thomas Tilton-Heylin
Thomas Tilton-Heylin
12,098 Points
Posted by Thomas Tilton-Heylin
Thomas Tilton-Heylin
12,098 Points

I'm missing "Person.call" method in my "Teacher" constructor function

I have tried a few different configurations of the parameters for the "teacher" function to hopefully get a different error message but nothing worked.

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

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

}
teacher.js 
function Teacher(firstName, lastName, roomNumber) {
  this.firstName = firstName;
  this.lastName = lastName;
  this.room = roomNumber;
}
Thomas Tilton-Heylin
Thomas Tilton-Heylin
12,098 Points
Thomas Tilton-Heylin
Thomas Tilton-Heylin
12,098 Points

Nevermind I didn't notice that I was supposed to edit the teacher.js file...

-_-

1 Answer

sean murphy
sean murphy
9,435 Points
sean murphy
sean murphy
9,435 Points

It looks like you have two instances of the Teacher() function. Try moving your teacher() code from person.js over to teacher.js. You are also missing the fullName method for Person(); you might have accidentally removed it. You do not need to modify that page. All of your edits need to be on teacher.js.