Different types of variables in Dart

variables.dart

void main() {
  // Create a variable name of type String
  var name = 'John';
  
  // Create a variable last_name of type String
  String last_name = 'Smith';
  
  // Create a dynamic variable age, which is of type int for now
  dynamic age = 18; 
  
  // Age is now of type List
  age = ['what', 'the', 'hell'];
  
  // Declaring a constant variable of type double
  const double PI = 3.14;
  
  // This would throw an error
  PI = 3;
}