Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

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

Jabor Al thani
Jabor Al thani
2,926 Points

Appending value of Switch in a loop to an Array ?

I need someone to give me a hint for this Im kind of stuck . So this asks me to create a loop for a switch which would iterate through the values and append the ones for the respective continent ? I just need a hint and I'll go ahead and finish off the rest .

operators.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 {
switch: worlds {
case "BEL","LTE","BGR": europeanCapitals.append
    // Enter your code below

    // End code
}

1 Answer

You need to append the value of the key. The for loop is for the key and the value.

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