fretString property

String fretString

Implementation

String get fretString => _fretString != null
    ? _fretString!
    : _fretString = stringFretList
        .map((int? fretNumber) => fretNumber == null
            ? 'x'
            : fretNumber < 10
                ? fretNumber
                : throw new UnimplementedError("fret >= 10"))
        .join();