Extracting a limited number of videos data from Sample List Data

trimmed_list.dart

void main() {
  int limit = 7;
  List<Map<String, dynamic>> sampleListData = [
    {
      "module_id": "7",
      "module_title": "Introduction",
      "videos": [
        {"sn_no": 1, "sno": "01", "video_id": "1668"},
        {"sn_no": 2, "sno": "02", "video_id": "4"},
        {"sn_no": 3, "sno": "03", "video_id": "38"},
        {"sn_no": 4, "sno": "04", "video_id": "39"}
      ]
    },
    {
      "module_id": "24",
      "module_title": "Learn",
      "videos": [
        {"sn_no": 5, "sno": "05", "video_id": "37"},
        {"sn_no": 6, "sno": "06", "video_id": "36"},
        {"sn_no": 7, "sno": "07", "video_id": "35"},
      ]
    },
    {
      "module_id": "25",
      "videos": [
        {"sn_no": 8, "sno": "08", "video_id": "34"},
        {"sn_no": 9, "sno": "09", "video_id": "2"},
        {"sn_no": 10, "sno": "10", "video_id": "6"}
      ]
    }
  ];

  List<Map<String, dynamic>> newList = [];

  int count = 0;
  for (var module in sampleListData) {
    if (count >= limit) break;

    List<Map<String, dynamic>> videos = [];
    for (var video in module['videos']) {
      if (count >= limit) break;
      videos.add(video);
      count++;
    }

    Map<String, dynamic> newModule = {
      "module_id": module['module_id'],
      "module_title": module['module_title'],
      "videos": videos,
    };

    newList.add(newModule);
  }

  print(newList);
}

This Dart code filters videos from a list of sample lists data, ensuring that no more than a specified limit of videos is included in the result.

Outcome