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Alex Nwarueze
2,172 Pointswhy isn't this code working?
func greeting(person: String) -> String { return person } println("Hello (greeting("Tom"))")
func greeting(person: String) -> String{
return "Hello" && person
}
//println("Hello \(greeting("Tom"))")
1 Answer
Jennifer Nordell
Treehouse TeacherThe && operator is used in comparisons. For example x is less than y AND x is greater than 0. If y was 10 and x was 2 then that would evaluate to true.
What you're looking for here is either concatenation or interpolation. In their code they already give you the interpolated version of the string. Here's what the final answer looks like:
func greeting(person: String) -> String {
return "Hello \(person)"
}
Interpolation uses the backslash and parentheses to tell the compiler to put the value stored in that variable in that spot. If you had written return "Hello person" then it would literally return "Hello person" instead of "Hello Alex" or whatever name you had passed in. Hope that clarifies things!
Alex Nwarueze
2,172 PointsAlex Nwarueze
2,172 PointsThanks Jennifer, appreciate the help.