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

Ivan Cadena
Ivan Cadena
2,949 Points
Posted by Ivan Cadena
Ivan Cadena
2,949 Points

Switch Statements

Could somebody tell me what im doing wrong?

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 {
    switch key { 
    case "LIE","BEL","BGR": europeanCapitals.append 
    case "IND","VNM": asianCapitals.append
    default "USA","MEX","BRA": otherCapitals.append
}
}

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

First, I'd like to say how well you're doing. You're not going to get much closer than this without actually getting it correct! :thumbsup: So let's take a look:

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

First, you're missing some parentheses around your key. You set up the logic for the first two cases beautifully, and even did the append, but then you forgot to say what you're appending. We're appending the value at that key. And third, because everything else is going to go into otherCapitals the default should just say default and not have any conditions.

Hope this helps! :sparkles: