Flutter : Copy data from one dart list to another list by searching with element

The list _data contain data from the csv file.

  List<List<dynamic>> _data = [];
  String key = "39";
  List<List<dynamic>> _tempdata = [];

  void _loadCSV() async {
    final _rawData = await rootBundle.loadString("assets/mycsv.csv");
    List<List<dynamic>> _listData =
        const CsvToListConverter().convert(_rawData);
    setState(() {
      _data = _listData;
    });
}

mycsv.csv data

id,Name,Num,Batch
15,JERRY,PH123,G9
27,Tom,PH129,G8
39,Oggy,PH124,G9
45,Jack,PH125,G10 

I need to
Get the data where id == key(search element) from the list "_data" and store it in new list named "_tempdata"

>Solution :

You can use the where method of the List class to filter the elements of the _data list that match the condition you specified and store the result in a new list _tempdata. Here’s an example of how you can implement this in your code:

_tempdata = _data.where((element) => element[0] == key).toList();