Liste des clones de fléchette
var numbers = <List<int>>[
[7, 54, 54, 5, 22, 53, 573, 783],
[753, 753, 735, 735, 735 , 21 , 75 ,21 ]];
var moreNumbers = <List<int>>[for (var value in numbers) List.of(value)];
Ugly Unicorn