2 ms·

As long as you're adding a type system (optional or not) it does seem a bit odd to opt for an unsound one...

• mythz 13y ago
  makes sense if you prefer dynamic languages since it adds least friction.
  • lucian1900 13y ago
    You can always have the Any type + a runtime tag on the box if you really need it.
    • mythz 13y ago
      That's just var (i.e. un-typed) in Dart.