list data type in flutter code example

Example 1: data types in flutter

main(List<String> args) {
  int number = 42;
  String name = 'Gurleen Sethi';
  double salary = 150300.56;
  bool isDoorOpen = true;
}

Example 2: flutter count list

var comments = <Comment>[...];
var count = comments.where((c) => c.product_id == someProductId).toList().length;