Can you give an example illustrating the application of the KISS principle in programming practice?

The KISS principle (Keep It Simple, Stupid) advocates writing simple and understandable code, avoiding unnecessary complexity.

Example in Flutter: instead of creating complex nested widgets with many conditions, you can break the interface into simple components.

class SimpleButton extends StatelessWidget {
  final String label;
  final VoidCallback onPressed;

  SimpleButton({required this.label, required this.onPressed});

  @override
  Widget build(BuildContext context) {
    return ElevatedButton(
      onPressed: onPressed,
      child: Text(label),
    );
  }
}

This approach simplifies maintenance and reusability of code, instead of writing one large widget with many internal logics.