Can you name the main types of constructors used in Dart?

In Dart, the main types of constructors include:

• Default constructor: Initializes an object using parameters.

class Point {
  int x, y;
  Point(this.x, this.y);
}

• Named constructors: Allow creating additional constructors with names.

class Point {
  int x, y;
  Point(this.x, this.y);
  Point.origin() {
    x = 0;
    y = 0;
  }
}

• Initializer list constructors: Used for initializing final fields or calling superclass constructors.

class Point {
  final int x, y;
  Point(this.x, this.y);
  Point.origin() : x = 0, y = 0;
}

• Factory constructors (factory): Allow returning an existing object or subclass.

class Logger {
  factory Logger() {
    return _cache ??= Logger._internal();
  }
  Logger._internal();
  static Logger _cache;
}

• Constant constructors (const): Create immutable objects that can be created at compile time.

class ImmutablePoint {
  final int x, y;
  const ImmutablePoint(this.x, this.y);
}

These types cover the main ways of creating and initializing objects in Dart.