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Carter Elgie
2,536 PointsExtending a Native Type Code Challenge
Every time I check my work it says, "Bummer: Make sure you're adding an add method that takes an Int and returns an Int?" I am pretty sure my syntax is correct, and I don't know what I am doing wrong.
Carter Elgie
2,536 PointsSorry, I thought it was on there. Here it is:
extension String {
func add(_ value: Int) -> Int {
if let intValue = Int(Self) {
return intValue + value
} else {
return nil
}
}
}
3 Answers
Magnus Hållberg
17,232 PointsThere are some small mistakes. First, your return has to be optionall so its Int? not just Int. Also ”self” is spelled with lower case letters. Hope this helps
Carter Elgie
2,536 PointsI tried that, but it's still saying the same thing. I've even tried other people's answers that they said worked, but it still does this.
Magnus Hållberg
17,232 PointsThis is not an actual error but you have omitted the external label in the method, remove that and you will pass. I used your code above and removed the omitted label, changed the return to make it optional and wrote self in lower case letters and that passed the challenge.
Carter Elgie
2,536 PointsOk, now it worked. Thanks!
Magnus Hållberg
17,232 PointsMagnus Hållberg
17,232 PointsCould you post your code, otherwise its hard to help.