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Dart Constructors


A class constructor must have the same name as its class.

Let's create a constructor for a class Person:

class Person {
 String name;
 String gender;
 int age;
 Person(this.name, this.gender, this.age);
}

The example above is a simpler, better way of defining the constructor than the following way, which is also possible:

class Person {
 String name;
 String gender;
 int age;
 Person(String name, String gender, int age) {
 this.name = name;
 this.gender = gender;
 this.age = age;
 }
}

Now you can create an instance of Person like this:

var alice = new Person('Alice', 'female', 21);


Conclusion

In this page (written and validated by ) you learned about Dart Constructors . What's Next? If you are interested in completing Dart tutorial, your next topic will be learning about: Dart Collections.



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