Map

void main() {
  // key : value
  Map<int, String> studentList = {
    1 : 'Honey',
    2 : 'Raj',
    3 : 'Saad',
    5 : 'Masum'
  };
  print(studentList[5]);
  print(studentList);
  studentList[50] = 'Day';
  studentList.addAll({
    24 : 'Abdullah',
    34 : 'Misti'
  });
  studentList[1] = 'Canada';
  studentList.addAll({
    34 : 'Shuruj'
  });
  print(studentList);
  print(studentList.keys);
  print(studentList.values);
  print(studentList.length);
  print(studentList[60]);

  Map<String, Map<String, int>> dummy = {
    'name' : {
      'anotherName' : 98745
    },
  };
  print(dummy);
  print(studentList.containsKey(46));
  print(studentList.containsValue('Canada'));
  print(dummy['name']['anotherName']);
}