Hello,
This test code for creating an array using a loop works:
var quotes: [(id: String, name: String)] {
var output: [(id: String, name: String)] = []
for i in 1...numberOfRows {
let item: (id: String, name: String) = ("\(i)", "Name \(i)")
output.append(item)
}
return output
}
But if I try to apply this logic to retrieving data from a web service using the below code I am getting 2 errors:
For the line “quotes.append(item)” I am getting the error message “Cannot use mutating member on immutable value: ‘quotes’ is a get-only property."
For the line “return output” I am getting the error message “Cannot find ‘output’ in scope."
if let url = URL(string:"https://www.TEST.com/test_connection.php"){
URLSession.shared.dataTask(with: url) { (data, response, error) in
if let data = data{
if let json = try? JSONDecoder().decode([[String:String]].self, from: data){
json.forEach { row in
var item: (id: String, name: String) = ("test id value", "test name value")
quotes.append(item)
}
return output
}
}
}
}
Topic:
Programming Languages
SubTopic:
Swift