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

Carson Carbery
Carson Carbery
9,876 Points
Posted by Carson Carbery
Carson Carbery
9,876 Points

Here's my answer to this code challenge. It works fine in xcode playground so why not here in the challenge?

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 }

I checked the values in the arrays using Print(), all were updated correctly. Please let me know why the code challenge screen is giving an error.

switch.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

    // End code
}

1 Answer

Nathan Tallack
Nathan Tallack
22,159 Points
Nathan Tallack
Nathan Tallack
22,159 Points

Yeah, this is an artifact of the test cases that workspaces is using to validate the challenge. They guid you in the task instructions to use the append method to add the value to the array. Doing that your code would look like this.

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

I hope this helps. :)