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Omotayo Olawepo
2,803 PointsStuck on this optional question
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.
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 something = search(name:"Snow White")
{ println("Name Found: (something)")
}
1 Answer
Richard Lu
20,185 PointsHey Omotayo,
Your solution is very close. When you return nil, you do not need to have quotes around it because that'll make it into a string. You want to express "nothingness", and in order to accomplish that you must use the value nil.
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 // no quotes
}
Happy coding! :)