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

Srinivas Sri Perumbuduru
Srinivas Sri Perumbuduru
2,502 Points

Stuck here. How to append value from a dictionary ?

Pls help

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 cities in world {
    // Enter your code below
    switch cities {
    case "BEL", "LIE", "BGR":
    europeanCapitals.append["Brussels","Vaduz","Sofia]
    case "IND", "VNM":
    asianCapitals.append["New Delhi", "Hanoi"]
    case "USA", "MEX","BRA"
    otherCapitals.append["Washington D.C.","Mexico City", "Brasilia" ]
    } 
    // End code
}

1 Answer

Holger Liesegang
Holger Liesegang
50,595 Points

Hi Srinivas Sri Perumbuduru !

Looks good - you just used a third case for "USA", "MEX","BRA" instead of default like this:

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

...I just saw that you changed for (key, value) in world { to for cities in world { ...your solution might work in Xcode but the Code Challenge won't accept your answer...

...and you only need to append one value at a time to the array