Flutter: Use of Dart extension Methods.

Updated 28 April 2023


Extension Methods:

In this blog, we will check the use of  Dart Extension methods in the flutter. Extension methods were introduced in Dart 2.7.

Sometimes we need additional functionalities which do not provide in existing libraries. We can add our own functionality by using the extension in the existing class of  libraries’ APIs

Extension methods used to add additional functionality to existing libraries’ APIs. We can define extension with methods, getters, setters, and operators.

Read more about Flutter app development.

Extension Syntax:

Extension On String Class:

Let’s check some String Class extension examples.

Extension On List Class:

Let’s check some List Class extension examples.

Using Extension methods:

You need to just import your extensions methods class and call Extention getter using dot(.) on variable

I hope this blog will help to add some utility functionality to existing APIs.

Happy Learning 🙂

Reference Links:https://dart.dev/guides/language/extension-methods

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