Flutter - how create json array from List<String>?

Question

I have simply list in my flutter app:

 var items = List<String>();
 items.add('1');
 items.add('2');
 items.add('3');

I converted it to string:

 var values =items.join(',');

Result:

 "[1,2,3]"

But I need json array, like it:

 ["1","2","3"]

How I create it from my list? it should be easy - but I'm stuck. any advice?

Answer 1

 import 'dart:convert';

 var items = List<String>();
 items.add('1');
 items.add('2');
 items.add('3');
 // or even better: var items = ['1','2','3'];

 print(json.encode(items));

output:

["1","2","3"]