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 .
Read moreShould a factory method be static?
No, factory class by default shouldn’t be static . Actually, static classes are not welcomed in OOP world since they can also convey some state and therefore introduce global application state. If you need only one factory object to be present, you can control it’s creation through singleton pattern.
Read moreWhy do we use factory constructor in flutter?
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 .
Read moreWhat is a factory constructor in flutter?
Factory constructors return am instance of the class, but it doesn’t necessarily create a new instance . Factory constructors might return an instance that already exists, or a sub-class. Rules for factory constructors: Factory constructors do use the return key word.
Read moreWhat is constructor in flutter?
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.
Read moreWhat is _internal in Dart?
The _internal construction is just a name often given to constructors that are private to the class (the name is not required to be . _internal you can create a private constructor using any Class.
Read moreWhat is the advantage of factory constructor?
The factory method is a smart way to create objects in Java and provides several advantages over the traditional approach of creating objects using constructors in Java. It can also improve the quality of code by making the code more readable, less coupled, and improves performance by caching .
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