Functions in Dart

DartPad1.dart

void main() {
  String name = 'Simran';
  int age = 28;
  final double height = 1.84; // You cannot change this variable as it is declared final
  var occupation = "Mobile App Developer";
  dynamic weight = 90;
  
  describe(name, age, height, occupation, weight);
  describe("Jassi", 29, 1.9, "Software Engineer");
  
  print(printMe(name:"Simran", age:28));
  print(printMe(name:"Jassi", age:28));
  
}

void describe(String name, int age, double height, String occupation, [dynamic weight = 100]) {
  print("Hello, I am $name.");
  print("My name has ${name.length} letters.");
  print("I am $age years old.");
  print("My height is $height meters tall.");
  print("I work as an Independent '$occupation'.");
  print("In 2019 I weighed $weight Kgs");
  weight = "75";
  print("But I wanna weight $weight Kgs\n\n");
}

String printMe({String name, int age}) {
  return "My name is $name and I am $age years old.";
}