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iOS Swift Collections and Control Flow Control Flow With Conditional Statements Working With Switch Statements

Denny Louis
Denny Louis
10,885 Points
Posted by Denny Louis
Denny Louis
10,885 Points

Remeber to append the values from each case statement to the correct array

I'm getting a message when I submit my code saying "Remeber to append the values from each case statement to the correct array".

I've tested my code in a Swift Playground and it doesn't say I have any errors and the results array has all of the values inside, not sure what I am doing wrong?

I had exactly the same problem with the previous code challenge so I'm starting to think maybe it's a bug in the course (or I'm just wrong)?

operators.swift 
var europeanCapitals: [String] = []
var asianCapitals: [String] = []
var otherCapitals: [String] = []

let world = [
  "BEL": "Brussels", 
  "LIE": "Vaduz", 
  "BGR": "Sofia", 
  "USA": "Washington D.C.", 
  "MEX": "Mexico City", 
  "BRA": "Brasilia", 
  "IND": "New Delhi", 
  "VNM": "Hanoi"]

for (key, value) in world {
    // Enter your code below
    switch key {
    case "BEL", "LIE", "BGR": europeanCapitals += [value]
    case "IND", "VNM": asianCapitals += [value]
    default: otherCapitals += [value]
    }
    // End code
}

1 Answer

Alexander Davison
Alexander Davison
65,469 Points

Your code looks fine, maybe try using .append() instead of the concatenation operator?

Here:

for (key, value) in world {
    // Enter your code below
    switch key {
    case "BEL", "LIE", "BGR": europeanCapitals.append(value)
    case "IND", "VNM": asianCapitals.append(value)
    default: otherCapitals.append(value)
    }
    // End code
}

Good luck! ~alex

Denny Louis
Denny Louis
10,885 Points
Denny Louis
Denny Louis
10,885 Points

Thanks Alex, it worked!

Do you know why the append method worked, while the concatenation wasn't accepted? I'd just like to know so I don't make the mistake again. It's pretty confusing since it worked for me in Xcode.

Thanks again :)

Alexander Davison
Alexander Davison
65,469 Points

I think it's just because Code challenges are picky.

Keep trying different ways and you will get it :)