Snippet 4: Definite assignment

main.dart

// Dart's type system is crafty enough to track
// where variables are assigned and where their
// values are read, and to verify that
// non-nullable fields are given values
// before any code tries to read from them.
//
// This process is called "definite assignment."
//
// Try uncommenting the if-else statement in the
// code below, and watch the analyzer errors
// disappear.

void main() {
  String text;
  
//   if (DateTime.now().hour < 12) {
//     text = "It's morning! Let's make aloo paratha!";
//   } else {
//     text = "It's afternoon! Let's make biryani!";
//   }

  print(text);
  print(text.length);
}