extension.dart

//extension to convert a string to a number
extension NumberParsing on String {
  int customParseInt() {
    return int.parse(this);
  }

  double customParseDouble() {
    return double.parse(this);
  }
}

void main() {
  //various ways to use the extension

  var d = '21'.customParseDouble();
  print(d);

  var i = NumberParsing('20').customParseInt();
  print(i);
}