Introduction to Dart

Dart is a client-optimized language for developing fast apps on any platform. It's the language used by Flutter for mobile app development.

Key Features:

• Optimized for UI development
• Fast on all platforms
• Productive development (hot reload)
• Sound null safety
• Rich standard library

Hello World:

void main() {
  print('Hello, Dart!');
}

Variables:

var name = 'Dart';  // Type inference
int age = 25;       // Explicit type
final pi = 3.14;    // Runtime constant
const api = 'v1';   // Compile-time constant