Flutter Convert To String Without "[ ]" [duplicate]

Question

I have a list. I want to convert this list to String data. I try to convert like this below, but brackets [] could not delete. My List datas: [6, 8, 9, 11, 14, 15, 16, 133, 134, 135, 136, 138] I tried like this to convert.

List value = [6, 8, 9, 11, 14, 15, 16, 133, 134, 135, 136, 138]
data = value.toString();

My data Output like:

print(data);
[6, 8, 9, 11, 14, 15, 16, 133, 134, 135, 136, 138]

But it doesn't work. How can I convert this list to string without []. Thanks.

COLD TOLD · Accepted Answer · 2021-01-29 15:36:06Z

3

I would suggest using join

https://api.dart.dev/stable/2.10.4/dart-core/Iterable/join.html

List value = [6, 8, 9, 11, 14, 15, 16, 133, 134, 135, 136, 138]
var data = value.join(',')

edited Jan 29, 2021 at 15:36

answered Jan 28, 2021 at 21:18

COLD TOLD

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Andres Silva · Accepted Answer · 2021-01-28 21:28:44Z

0

Try:

List<int> value = [6, 8, 9, 11, 14, 15, 16, 133, 134, 135, 136, 138]; 
  
List<String> string_values = value.map((value) => value.toString()).toList();

answered Jan 28, 2021 at 21:28

Andres Silva

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Comments

Duda · Accepted Answer · 2021-01-29 19:21:30Z

0

void main() {
  String output='';
  List value = [6, 8, 9, 11, 14, 15, 16, 133, 134, 135, 136, 138];
  value.forEach((x)=>x.toString());
  output = value.join(',');
  print(output);
}

edited Jan 29, 2021 at 19:21

Duda

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answered Jan 28, 2021 at 21:35

Vipin Kumar Kashyap

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3 Comments

Amit Verma Over a year ago

While this code may provide a solution to the question, it's better to add context as to why/how it works. This can help future users learn, and apply that knowledge to their own code. You are also likely to have positive feedback from users in the form of upvotes, when the code is explained.

Vipin Kumar Kashyap Over a year ago

Thanks Amit. Since this is my first answer I wasn't sure what the best way to share would be. I'll definitely iterate :)

Amit Verma Over a year ago

Yes pls, explaining it to some extent, would be a lot meaningful. Thanks.

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