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Start your free trialGilang Ilhami
12,045 PointsWorking with statements in Swift, not appending
I already set in the values in the append, but i don't know why it'a not working
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 countyCode {
case "BEL", "LIE", "BGR": europeanCapitals.append("Brussels", "Vaduz", "Sofia")
case "IND", "VNM": asianCapitals.append("New Delhi", "Hanoi")
default: otherCapitals.append("Wahington D.C.", "Mexico City", "Brasilia")
}
// End code
}
Raghav Sharma
2,207 PointsHere you should append whatever you want in a for loop. You can only append one element.
1 Answer
Abdulwahab Alansari
15,151 PointsFirst of all, you are using switch on countyCode, which does not exist in your code, I believe you meant to use "key". Second, you can only use one element in append() function. What's more, instead of listing all capitals in each append() function, just use "value".
You code should look 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 "BEL", "LIE", "BGR": europeanCapitals.append(value)
case "IND", "VNM": asianCapitals.append(value)
default: otherCapitals.append(value)
}
// End code
}
Raghav Sharma
2,207 PointsYeah that is correct. Nice explanation Abdulwahab Alansari!!
Roger Rohweder
8,474 PointsRoger Rohweder
8,474 PointsI think .append() only works for adding a single element (string). Your sample works for me when I use this instead:
case "BEL", "LIE", "BGR": europeanCapitals += ["Brussels", "Vaduz", "Sofia"]
(see http://stackoverflow.com/questions/24002733/add-an-element-to-an-array-in-swift)