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

Nima Doost
Nima Doost
706 Points

filling in empty arrays

I've been having issues trying to finalize my code, I know I;m on the right track but some guidance would be appreciated!! How does the final version of this look?

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

    // End code

1 Answer

William Humphrey
William Humphrey
5,543 Points
 // first you need to "switch" on the key
 switch (key) {
        // in a switch statement you need to add cases for the keys and place them in the correct array
    case "BEL", "LIE", "BGR": europeanCapitals.append(value)
        //because you are making a change to the array you need to use the .append method and throw the value on the back end
    case "IND", "VNM": asianCapitals.append(value)
        // because switch statements are exhaustive you need to have a default where everything else can go
    default: otherCapitals.append(value)
// End code