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

Joshua Ward
Joshua Ward
4,550 Points

contact.firstName should be a string

Not sure how to modify this object. It keeps telling me the contact.FirstName and contact.lastName should be strings.

var contact = {
  fullName: function(firstName, lastName) {
    console.log(firstName + " " + lastName);

1 Answer

The subject of the exercise is understanding "this" in JavaScript methods. So the arguments in your function should remain firstName and lastName but when you use them in you console log you need to reference the specific instances of them by saying this.firstName and this.lastName