Parsing json to list using dart

Question

I'm facing a challenge parsing json to list.

I'm expected to return: ['Ada', 'Blaise'] But I'm returning: [['Ada', 'Blaise']]

What should I consider?

import 'dart:convert';

main() {
  var lista = (nimet('{"nimet":["Ada","Blaise"]}'));
  print(lista);
}

nimet(jsonMerkkijono) {
  var data = jsonDecode(jsonMerkkijono);
  var lista = [];
  for (var i = 0; i < data.length; i++) {
    var tieto = data['nimet'];
    lista.add(tieto);
  }

  return lista;
}

julemand101 · Accepted Answer · 2021-03-17 10:54:35Z

1

Your code misses a lot of types and I don't know why you have the for-loop. I have rewritten the code which now returns what you want:

import 'dart:convert';

void main() {
  final lista = nimet('{"nimet":["Ada","Blaise"]}');
  print(lista); // [Ada, Blaise]
}

List<String> nimet(String jsonMerkkijono) {
  final data = jsonDecode(jsonMerkkijono) as Map<String, dynamic>;
  final lista = data['nimet'] as List<dynamic>;
  return lista.cast<String>();
}

answered Mar 17, 2021 at 10:54

julemand101

31.7k5 gold badges59 silver badges55 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Parsing json to list using dart

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related