listCase() {
  // List<dynamic>
  List randomList = [
    "There is a phrase",
    234,
    2.0094,
    ["Another random list", 98, 0x04]
  ];

  // List<Object> - In this case, we use String object.
  List<String> names = ["Kennan", "Fattahillah", "Herdyhanto"];

  // Nested List - T as a dynamic type.
  List<List<dynamic>> nestedList = [
    ["First Offset"],
    ["Second Offset"]
  ];

  // Memory matter and clone.
  List<String> baseList = ["Kennan", "Fattah"];
  List<String> copyList = baseList;
  baseList[0] = "Herdyhanto";
  print(copyList); // [Herdyhanto, Fattah]

  List<String> cloneList = [...baseList]; // Clone the baseList
  baseList[0] = "Another";
  print(copyList); // [Another, Fattah]
  print(cloneList); // [Herdyhanto, Fattah]
}

setCase() {
  /**
   * CONCLUSION:
   * Set is basically the main collection data type.
   * It can be a HashMap, HashSet (List?).
   *
   * Collection of key.
   *
   * Object in JS ^^.
   * Dictionary in Python.
   */
  // runtimeType: _InternalLinkedHashMap<dynamic, dynamic>
  var mapDynamic = {"something": false, "yeay": 1, 23: "false"};
  // runtimeType: _CompactLinkedHashSet<String>
  var setString = <String>{"A", "B", "C"};
  // runtimeType: _InternalLinkedHashMap<String, int>
  var mapStringInt = <String, int>{"key": 1};

  print(mapDynamic);
  print(setString);
  print(mapStringInt);

  print(setString.elementAt(0)); // "A"
}

mapCase() {
  /**
   * Collection of key.
   *
   * Object in JS ^^.
   * Dictionary in Python.
   */
  // runtimeType: _InternalLinkedHashMap<dynamic, dynamic>
  Map a = {
    "first_val": 1,
    "second_val": false,
    "third_val": [
      {0x01},
      {0x02},
      {0x03}
    ]
  };
  print(a);
  print(a["third_val"][0].elementAt(0)); // _CompactLinkedHashSet<int> -> 1
}

main(List<String> args) {
  // listCase();
  // setCase();
  // mapCase();
}