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iOS Swift 2.0 Collections and Control Flow Control Flow With Conditional Statements Working with Switch Statements

Posted by sterlingpitt
sterlingpitt
492 Points

What am I missing?

Can't seem to figure out what I'm missing here. It works in the playground.

switch.swift 
var europeanCapitals: [String] = ["BEL", "LIE", "BGR"]
var asianCapitals: [String] = ["IND", "VNM"]
var otherCapitals: [String] = ["USA", "MEX", "BRA"]

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": print(europeanCapitals)
    case "IND", "VNM": print(asianCapitals)
    default: print(otherCapitals)
    }
    // End code
}

1 Answer

Steven Deutsch
Steven Deutsch
21,046 Points
Steven Deutsch
Steven Deutsch
21,046 Points

Hey stephaniepittington,

You want to be appending the values of the matched key in each case statement to their appropriate arrays. You are currently printing out the values of the arrays. After you fix that, you can remove the keys that you hardcoded inside of the arrays. The append() method will populate the arrays for you.

var europeanCapitals: [String] = ["BEL", "LIE", "BGR"]
var asianCapitals: [String] = ["IND", "VNM"]
var otherCapitals: [String] = ["USA", "MEX", "BRA"]

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.append(value)
    case "IND", "VNM": asianCapitals.append(value)
    default: otherCapitals.append(value)
    }
    // End code
}

Good Luck!