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JavaScript Object-Oriented JavaScript (2015) Introduction to Methods Understanding this

Posted by Kyra Crowston
Kyra Crowston
318 Points

Error message: The `contact.firstName` should be a string and so should `contact.lastName

Am I supposed to have [brackets] around a part of my code? What am I doing wrong?

object.js 
var contact = {
  fullName: function() {
    contact.firstName = "Andrew";
    contact.lastName = "Chalkley";
    console.log(firstName + " " + lastName);
  }
}

1 Answer

James Bradd
James Bradd
4,597 Points
James Bradd
James Bradd
4,597 Points

You are close, you just need to use contact.firstName and contact.lastName. This is referring to your console.log statement. Unless declared elsewhere, variables "firstName" and "lastName" are never decalred. Hope this helps!

James Bradd
James Bradd
4,597 Points

Oh, I remember now =) I just went back and redid the challenge. So you're defining an object here, both it's properties and it's methods. You want to do properties first so define what the first name is, define what the second name is, then create a function to create a full name.

var obj = {

    property1 : "thing",
    propterty2 : "another thing",

    function1: function()
    {
        console.log("This object has " + property1 + "and " + property2);
    }
}

Basically, define it's properties first, then create functions to manupulate those properties. Sorry for the vague first answer, it took going back to the challenge to remember what it was asking you to do.

Jeff Wilton
Jeff Wilton
16,646 Points
Jeff Wilton
Jeff Wilton
16,646 Points

Good catch, James. I was just getting ready to respond with a similar post to your second one, but you beat me to it. :)