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

Matt Smith
Matt Smith
878 Points
Posted by Matt Smith
Matt Smith
878 Points

Could someone help me with the next step of this challenge?

Have I used 'case' correctly with the keys from the dictionary? What is my next step to completing this challenge and why?

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
    switch world {
        case "BEL", "LIE", "BGR": europeanCapitals.append(<#T##newElement: String##String#>)
        case "VNM", "IND": asianCapitals
    default: otherCapitals.append(<#T##newElement: String##String#>)
    }
    // End code
}

3 Answers

Cindy Lea
PLUS
Cindy Lea
Courses Plus Student 6,497 Points
Cindy Lea
Cindy Lea
Courses Plus Student 6,497 Points

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

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

Matt, try something along these lines instead:

for (key, value) in world {
    // Enter your code below
    switch key {
    case "BEL","LIE","BGR": europeanCapitals += [value]
    case "IND", "VNM": asianCapitals.append(value)
    default: otherCapitals.append(value)
    }
}

Note that the editor will take either += or append.

Tyron Spencer
Tyron Spencer
1,489 Points
Tyron Spencer
Tyron Spencer
1,489 Points

@jcorum Hi there, I also wanted to thank you for your help. Ive been stuck on this for ages! :)

Kind regards Ty