Volume.fromJson constructor Null safety

Volume.fromJson(
  1. Map<String, dynamic> json
)

Implementation

Volume.fromJson(Map<String, dynamic> json) {
  volume = json['volume'] ?? '';
  count = json['count'] ?? 0;
  chapters = {};
  if (json['chapters'] != null) {
    json['chapters'].keys.forEach((key) {
      chapters[key] = ChapterInfo.fromJson(json['chapters'][key]);
    });
  }
}