SOLVED: error: missing return in global function expected to return 'String

@ctsell

May '24

https://www.hackingwithswift.com/quick-start/understanding-swift/when-is-the-return-keyword-not-needed-in-a-swift-function#:~:text=func%20greet(name%3A%20String)%20%2D%3E%20String%20%7B%0A%20%20%20%20if%20name%20%3D%3D%20%22Taylor%20Swift%22%20%7B%0A%20%20%20%20%20%20%20%20%22Oh%20wow!%22%0A%20%20%20%20%7D%20else%20%7B%0A%20%20%20%20%20%20%20%20%22Hello%2C%20%5C(name)%22%0A%20%20%20%20%7D%0A%7D

A string is returned directly from both parts of that condition, so it's allowed.

func greet(name: String) -> String {
    if name == "Taylor Swift" {
        "Oh wow!"
    } else {
        "Hello, \(name)"
    }
}

If I use provided code in Xcode playground, it returns below error though the topic says "it is allowed"

error: missing return in global function expected to return 'String'

Why is that?

@Obelix

May '24

it returns below error though the topic says "it is allowed"
Why is that?

Odd.

I created a new Playgrounds file and tested this code:

// global playground function
// takes in a string and returns a sting
func verifySpell(🧙🏻: String) -> String {
    if 🧙🏻 == "Hermione" {
        "leh-vee-OH-sa"
    } else {
        "You're saying it wrong."
    }
}

// No compiler complaints here...
verifySpell(🧙🏻: "Hermione") // 👈🏼 No errors here...
verifySpell(🧙🏻: "Luna")     // 👈🏼 .. or here!

This worked as advertised. It returns strings, and doesn't complain about not having a return statement.

Keep Coding

I don't know what to tell you.

Try the usual:
(1) Create a new playgrounds file.
(2) Update Xcode and simulators.
(3) Offer burnt toast 🥪 offering to Assemblix, the compiler god.

@ctsell

May '24

Thanks it seems my Xcode was stuck in version 14. Updated and problem solved.

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