windowLeft property Null safety

NormalOperation windowLeft
final

Implementation

static final NormalOperation windowLeft = NormalOperation.intOnly(
    stackLift: StackLift.neutral,
    intCalc: (Model m) {
      try {
        m.display.window = m.display.window + 1;
      } on CalculatorError catch (_) {}
    },
    name: '>');