Using dev dependencies

In Flutter, dev dependencies are packages that you only need during development, and not in production. In this recipe you will see how to add and use a common Flutter linting package, unsurprisingly called lint.

Getting ready

In this recipe, you will use the project created in the previous one: Importing packages and dependencies.

How to do it...

In this recipe you will add the lint package to your Flutter project and configure it to use linting rules:

1. Add the latest version of the lint package as a dev dependency in your pubspec.yaml, and remove any other linting packages you may find there:

   dev_dependencies: 
     flutter_test: 
       sdk: flutter 
     lint: ^2.0.0
   

2. In the console, run flutter pub get to download the package.
3. If required, create a new file, called analysis_options.yaml, in the root of your project.
4. Alternatively, open analysis_options.yaml, and edit its content so that it only contains...