How do I modify the 'search' function to return an optional instead of just a String in Challenge Task 1?

Question

I just learned optionals and obviously they want me to use one.  After looking back at the code from the video these are my two guesses... 
1)let names = search(name: "Snow White") 
names! 
2) if let names = search(name: "Snow White") {
println("Snow White") } 
The reason I'm using "Snow White" is because when I put the code above in it tells me that since "Snow White" can't be found it should print nil...  somehow.  Optionals and nil make sense, but for me it's translating that into this task is where I'm lost.
```search.swift
func search(#name: String) -> String {
    let names = ["Doc","Grumpy","Happy","Sleepy","Bashful","Sneezy","Dopey"]
    for n in names {
        if n == name {
            return n
        }
    }
    return ""
}
```

Juan Carlos Delgado Vidal · Answer

Hi, my best guess would be this:
```swift
func search(#name: String) -> String? {
    let names = ["Doc","Grumpy","Happy","Sleepy","Bashful","Sneezy","Dopey"]
    for n in names {
        if n == name {
            return n
        }
    }
    return nil
}
```
so basically you set the return parameter to optional by adding the ? suffix. Then modify the return to nil if no name is found

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Zachary Goforth

Zachary Goforth

How do I modify the 'search' function to return an optional instead of just a String in Challenge Task 1?

1 Answer

Juan Carlos Delgado Vidal

Juan Carlos Delgado Vidal

Zachary Goforth

Zachary Goforth