Modifiers in Dart

Modifiers In Dart

Modifiers are used in the programming to restrict, provide access to the class, or add specific functionality to variables and methods. You can divide modifiers into two groups:

  1. Access modifiers
  2. Non – Access modifiers

Access Modifiers

For Classes:

Modifier Description
Default Accessible by all the files and classes in the program throughout all folders or libraries.
Private Accessible only to the current library or, say, for files inside the current folder only.
Info

Note: No private keyword is used to declare private, but _ (underscore) is added as a prefix to the class name in dart.

For methods and properties:

Modifier Description
Default Accessible by all the files in the program throughout all folders or libraries.
Private Accessible only to the current library or, say, for files inside the current folder only.

Non-Access Modifers

For Classes:

Modifier Description
Abstract An object cannot be created from such a class.

For methods and properties:

Modifier Description
Abstract Can be used in the abstract class and can only be used on methods.
Static Belongs to the class rather than the object acts as a single unit for the whole class rather than as an independent unit for each class object.
Info

Note: Not abstract keyword is used to declare the abstract method, but the unimplemented process is considered abstract.