const and final workbook

main.dart

void main() {
  
  //each of these must be initialized and can't be changed
  const pi = 3.14;
  final pi2 = 3.14;
  
  //final collections may be mutable, const collections immutable
  
  const immutableList = [2,3,4,5,6];
  //get 'unsupported operation: add' exception
  //immutableList.add(7);
  for (var num in immutableList) print(num);
  
  final mutableList = [2,3,4,5,6];
  mutableList.add(7);
  for (var num in mutableList) print(num);
}