Speed constructor

Speed(
  1. String? code
)

Implementation

Speed(String? code) : super(null) {
  if (code == null || code == '//') {
    code = '///';
  }

  if (code.length == 2) {
    code = '0$code';
  }

  assert(code.length >= 3, 'wind speed code must have 2 or 3 digits length');

  _value = double.tryParse(code);
}