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iOS

Frances Angulo
Frances Angulo
5,311 Points
Posted by Frances Angulo
Frances Angulo
5,311 Points

String interpolation with functions and strings

Why does this return "John Smith": 

func fullName(firstName: String, lastName: String) -> String {
    return firstName + " " + lastName
}

fullName("John", "Smith")

but this returns errors such as 'Unresolved Identifier': 

func fullName(firstName: String, lastName: String) -> String {
    return firstName + " " + lastName
}

println("Your full name is \(fullName("John", "Smith"))")

1 Answer

Khairul Akmal
Khairul Akmal
Courses Plus Student 16,527 Points

@Frances Angulo You can't call the function directly. If you want to use string interpolation, I suggest that you create a variable and assign the function on it. Then you can use it without error.

Example:

var fullname = fullName("John", "Smith")
println("Your full name is \(fullname)")

I hope this helps ;D

Frances Angulo
Frances Angulo
5,311 Points
Frances Angulo
Frances Angulo
5,311 Points

Thanks! This helped, I just didn't want to create the separate line of code. It looks like I can indeed call it in one line, but the interpolation escape character is not necessary.

This worked: 

println("Your name is " + fullName("Frances", "Angulo"))
Khairul Akmal
Khairul Akmal
Courses Plus Student 16,527 Points

Frances Angulo No worries! I'm glad to help and that works too. Like I said if you want to use the string interpolation, that's how it should be done ;D