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Casey Woelfle
Courses Plus Student 1,861 PointsTotally stuck on optionals in swift for iOS
The question reads: The search function below returns a name if it is found in the array and an empty string if it is not found. Modify the search function to return an optional instead of just a String. In addition, you have to make sure the function returns a nil if the name is not found in the array
I made string be string? to make that an optional, but when I put my let findname = "Doc" it says change search("Doc") to "Doc" so I did that, and it still tells me the same thing. I dont understand.
func search(#name: String) -> String? {
let names = ["Doc","Grumpy","Happy","Sleepy","Bashful","Sneezy","Dopey"]
for n in names {
if n == name {
return ""
}
}
return nil
}
let findname = "Doc"
1 Answer
Roberto Alicata
Courses Plus Student 39,959 PointsThis is the right code:
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
}
if let result = search(name: "Doc") {
println("Found")
}