Question 75694 in Flutter Question posted in
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Add multiple list inside list – dart – Flutter

I have this code

    var sections = [];
    
    
    sections.add({'name': 'test', 'qustions' : []});
    sections[0]['qustions'] = {'asd':'qustions 1'};
    sections[0]['qustions'] = {'name':'qustions 2'};

    print(sections);

returns

[{name: test, qustions: {name: qustions 2}}]

I want it to returns something like

[{name: test, qustions: [{name: qustions 1},{name: qustions 2}]}]

Tags:

2

Answers


  1. 0

    Every time you use map[key]=newValue, it reset the value for that key. what you need here is to perform add for list.

    var sections = [];

sections.add({'name': 'test', 'qustions': []});

sections[0]['qustions'].add({'asd': 'qustions 1'});
sections[0]['qustions'].add({'name': 'qustions 2'});
print(sections);

    You may also like to create model class.

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  2. 0

    you can use insert method:

      var sections = [];

  sections.add({'name': 'test', 'qustions': []});
  sections[0]['qustions'] = {'name': 'qustions 1'};
  sections.insert(1, {'name': 'qustions 2'});

    output

    [{name: test, qustions: [{name: qustions 1},{name: qustions 2}]}]
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