error_handling.dart

void main() {}

/// A piece of code checking for errors using exceptions

/// Checking using exceptions
void checkingForExceptions() {
  try {
    /// performing operation
  } on FormatException {
    /// Handle exception
    print('Handling format exception');
  } on StateError {
    /// Handle exception
    print('Handling state error');

    /// You can keep adding more chains of On to handle specific errors
    /// Then use catch to catch all other excections
  } catch (ex) {
    print(ex.toString());
  }
}

/// Checking using control flow

void checkingUsingIfElse() {
  // assume 
  final bool ifSuccessful = performComplexOperation();
  
  if (!ifSuccessful) {
    print('An error occured');
  }
}


/// Should return true if operation is successful, otherwise return false
/// We will return false to simulate an error
bool performComplexOperation() {
  return false;
}