I am stuck on this code challenge

Hi Brendan - You need to switch on the key not worlds, you also need to append the value and also make sure your have a return case for all values. The other ones should go under .other

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 {
    switch key {
    case "BEL","BGR","LIE":
        europeanCapitals.append(value)
    case "IND" :
        asianCapitals.append(value)
    default:
        otherCapitals.append(value)
    }
}

Hello -

There are three problems here:

First off, you are switching on world. Remember, (key, value) is what the current section of world is being assigned to. Meaning, you have to switch either key or value.

Second off, your cases aren't correct. You are only checking if it is USA or BGR. You need to check every key.

Lastly, you didn't add a default clause, which is required.

Your code:

for (key, value) in world { // Enter your code below switch world { case "USA": otherCapitals.append("Washington D.C.") case "BGR": europeanCapitals.append("Sofia") // End code } }

I would highly recommend going back through the section on switching, since everything wrong with your code had to do with your attempt at using the switch statement. Also maybe brush up on for-in loops again since you didn't understand the temporary tuple.

I hope this helps, and if you have any more questions about this, please ask.

~Jack