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shane reichefeld
Courses Plus Student 2,232 Pointsi dont know what to do or why im wrong?
please help
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 world{
case "BEL": europeanCapitals.append("Brussels")
case "LIE": europeanCapitals.append("Vaduz")
case "BGR": europeanCapitals.append("Sofia")
default "USA": otherCapitals.append("Washington D.C.")
default "MEX": otherCapitals.append("Mexico City")
default "BRA": otherCapitals.append("Brasilia")
case "IND": asianCapitals.append("New Delhi")
case "VNM": asianCapitals.append("Hanoi")
}
// End code
}
1 Answer

Jennifer Nordell
Treehouse TeacherFirst you're supposed to switch on key. Secondly, your code can be optimized somewhat. Currently you're switching on world. So what you're really saying is when "world" is equal to "IND" append "New Delhi" which is not what you're after exactly. Here's my final code. Hope it clarifies things a bit.
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", "BGR", "LIE":
europeanCapitals.append(value)
case "IND", "VNM":
asianCapitals.append(value)
default:
otherCapitals.append(value)
}
// End code
}
Here, I'm saying if the key is "BEL" or "BGR" or "LIE" put the value (ie "Brussels") into the europeanCapitals array. Then I go through the asian capitals. And finally everyone else gets put in otherCapitals. Happy coding!