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iOS Swift Functions and Optionals Functions Syntax and Parameters

How to use string interpolation

Here are the instructions... Modify the println statement within the greeting function to use the variable person. For example, if you pass a person named "Tom" to the function then it should display: Hello Tom. (Hint: you must use string interpolation).

func greeting(person: String) {
    let myGreeting = "Hello, " + person + "!"

1 Answer

func greeting(person: String) {
    println("Hello \(person)")