Var and const in Dart.

2-2-base-dart.md

int a;

void awesomeFunction() {
  double b;
  int b1;
  var text = "Hello world";
  //text = a; //error: A value of type 'int' can't be assigned to a variable of type 'String'.
  dynamic dyn;
  dyn = text; // No error, works perfect.

  //final fin; // Error: The final variable ';' must be initialized.
  //const con; // Error: The const variable ';' must be initialized.
  final fin = "Finita la comedia";
  const con = 42;

  //fin = "Next value"; //  Error: Can't assign to the final variable 'fin'.
  //con = 43; // Error: Can't assign to the const variable 'con'.

  // const vs final https://news.dartlang.org/2012/06/const-static-final-oh-my.html

  double fullEnd = 12;
}