## Tuples in Dart

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 Tuples in Dart Fernando Carvalho 7/28/12 3:20 PM I would like to know if dart supports tuples, like we do in Python.For example, I would like to create a tuple that represents a Point, so in Python, I would declare:point_x=(1, 2) What is the recommended way to do that in Dart?-- Fernando Re: [misc] Tuples in Dart Ladislav Thon 7/29/12 1:13 AM I would like to know if dart supports tuples, like we do in Python. It doesn't. Dart has lists and list literals: [1, 2, 3]. Also, Dart has compile-time constants and you can make a list literal constant by prepending the const keyword: const [1, 2, 3]. Normal lists are mutable, while constant lists are not only immutable, but also canonicalized (i.e., there is always a single instance of such constant). See: main() {  var a = [1, 2, 3];  var b = const [1, 2, 3];   var c = const [1, 2, 3];  print(a);  a[0] = 0;   print(a);  print(b === c); // the === operator tests for _identity_   // b[0] = 0; // this would fail} This program prints[1, 2, 3][0, 2, 3]true  For example, I would like to create a tuple that represents a Point, so in Python, I would declare: point_x=(1, 2) What is the recommended way to do that in Dart?I'd say that the recommended way of representing a point in Dart would beclass Point {   final num x, y;  Point(this.x, this.y);}:-) Re: Tuples in Dart Naiem Y 7/29/12 5:53 AM Also you can define a C# style tuple in some common library. They can be handy for passing data across private functions.class T1 { E1 item1; }class T2 { E1 item1; E2 item2; }etc... Re: [misc] Re: Tuples in Dart Kevin Moore 7/29/12 9:28 AM Or borrow dartlib'shttps://github.com/kevmoo/dartlib/blob/master/lib/dartlib/tuple.dart