Flutter constructor

You can only have one unnamed constructor, but you can have any number of additional named constructors in Flutter . By using named constructor you can create multiple constructors in the same class.

Constructor is a special method of Dart class which is automatically called when the object is created . The constructor is like a function with/without parameter but it doesn’t have a return type.16 Mar 2022

You can only have one unnamed constructor, but you can have any number of additional named constructors in Flutter . By using named constructor you can create multiple constructors in the same class.

Since a factory constructor does not directly create a new instance, it cannot use a constructor initializer list . A normal constructor always returns a new instance of the class. A factory constructor is permitted to return an existing instance, an instance of a derived class, or null .

Dart Constructors A constructor is a special function of the class that is responsible for initializing the variables of the class . Dart defines a constructor with the same name as that of the class.

Dart Constructors A constructor is a special function of the class that is responsible for initializing the variables of the class . Dart defines a constructor with the same name as that of the class.

There are three types of constructors in Dart: Thus, if a constructor which don’t have any parameter then it will be a type of default constructor.20 Tem 2020