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Matt Smith
878 Points'Call the instance method and assign the full name to a constant named fullName.' - What is my next step and why?
What is my next step in this challenge and why?
struct Person {
let firstName: String
let lastName: String
func getFullName() -> String {
return "\(self.firstName) \(self.lastName)"
}
}
let aPerson = Person(firstName: "Harry", lastName: "Potter")
let fullName = getFullName()
2 Answers
Jennifer Nordell
Treehouse TeacherOh Matt Smith you're so close here! You created the method. You tried to call the method, but a method must be called on an object. You just forgot to say which object! Here's your next step:
let fullName = aPerson.getFullName()
Now the why part... that's a good question. But let's say that we have a database full of names first and last. And maybe we want to write something that will print out envelope labels. Maybe our database lists the last name first and first name last. But we could use this function to get the full name of the person and use it to write our labels. Just one possible scenario
Hope this helps!
Matt Smith
878 PointsThank you very informative. Why does the return have need to have self. as a prefix to the name strings?
Jennifer Nordell
Treehouse TeacherSelf represents the current object. What if you didn't have one person but two?
let aPerson = Person(firstName: "Harry", lastName: "Potter")
let bPerson = Person(firstName: "Darth", lastName: "Vader")
When we run the method on the current object in question, it needs to represent itself... not some other object. So if we do this:
let fullName = bPerson.getFullName();
The name returned will now be Darth Vader.