Is there any way to get an unnamed property of a tuple given its position?
Like below:
let record = ("field1", "field2")
func getRecordFieldValue(at: Int, of record: (String, String)) -> Any? {
// pseudo code
record.[at]
}
let record = ("field1", "field2")
print(record.0)
gives: "field1"
But you cannot write
let n = 0
record.n
I can propose this workaround. Hope it will help.
func getRecordFieldValue(at: Int, of record: (String, String)) -> Any? {
// pseudo code
switch at {
case 0: return record.0
case 1: return record.1
default: return nil
}
}
let n = 1
print(getRecordFieldValue(at: n, of: record))
gives: Optional("field2")
Works with multiple types:
typealias MyTuple = (String, String, Int)
let record : MyTuple = ("field1", "field2", 3)
func getRecordFieldValue(at: Int, of record: MyTuple) -> Any? {
// pseudo code
switch at {
case 0: return record.0
case 1: return record.1
case 2: return record.2
default: return nil
}
}
let n = 2
print(getRecordFieldValue(at: n, of: record))
gives: Optional(3)
In your example the tuple is homogeneous, that is, all the elements are of the same type (String). Can you guarantee that?
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