Function Types

 /// Types of Functions

/// 1)  No argument and No return Type
/// 2)  With argument and No return Type
/// 3)  No argument and With return Type
/// 4)  With argument and With return Type

/// 1) No argument and No return Type
void main() {
  add();
}
void add() {
  var a=10, b=20;
  print(a+b);
}

/// 2) With argument and No return Type
// void main() {
//   add(5,10); //Here, Two Arguments are passed
// }
// void add(var a, var b) //Here, Two parameters are defined
// {
//   print(a + b);
// }

/// 3)  No argument and With return Type
// void main() {
//   print(add());
// }
// int add() {
//   var a=2, b=4;
//   var c = a + b;
//   return c;
// }

/// 4)  With argument and With return Type
// void main() {
//   print(add(10, 50));
// }
// int add(var a, var b) {
//   var c = a + b;
//   return c;
// }

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