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1,505 PointsCode needs to use the unwrap (!) character inorder to run
Direction does not talk about using the unwrap character (!). My code only executes when using the ! character:
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": europeanCapitals.append(world["BEL"]!) case "LIE": europeanCapitals.append(world["LIE"]!) case "BGR": europeanCapitals.append(world["BGR"]!) case "IND": asianCapitals.append(world["IND"]!) case "VNM": asianCapitals.append(world["VNM"]!) default: otherCapitals.append(world["VNM"]!) } // End code }
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
Brent McCoy
Courses Plus Student 31,764 PointsThe code is within a for/in loop that uses the temporary variables (key, value) to iterate through the dictionary - so you can use "value" to access the current value for each dictionary key. Also this way you can put multiple keys that need to take the same action within the same case:
// Enter your code below
switch key {
case "BEL","LIE","BGR": europeanCapitals.append(value)
case "IND","VNM": asianCapitals.append(value)
default: otherCapitals.append(value)
}