Question 74810 in Flutter Question posted in
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Dart. Convert String to List<int> – Flutter

Question in dart:

How can I convert a String like this:

"[137, 80, 78, 71, 13, 10, 26, 10]"

to type List<Int>

Thanks

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3

Answers


  1. Chosen as BEST ANSWER
    0

    I did it like this:

    json.decode()

    Meaning....

    String value = "[137, 80, 78, 71, 13, 10, 26, 10]"

List<int> list = json.decode(value).cast<int>();

  2. 0

    You can use RegExp like this:

     String str = "[137, 80, 78, 71, 13, 10, 26, 10]";
  
  List<int> intList = str.replaceAll(RegExp(r'[[], ]'), '').split('').map(int.parse).toList();
  
  print(intList);

    happy coding…

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  3. 0

    Follow the below steps.

    1. Remove the ‘[]’

    2. Use split() method

    3. Turn it to an int List

       List<int> list = value.replaceAll('[', '')
                  .replaceAll(']', '').split(',')
                  .map<int>((e) { 
                  return int.parse(e);
                  }).toList();

 print(list);// [137, 80, 78, 71, 13, 10, 26, 10]
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