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string array to normal array with double quotes in dart (flutter)

i have this

String stringArray = "[folder/1.png,folder/2.png,folder/3.png]";

this is what i want

List array = ["folder/1.png","folder/2.png","folder/3.png"]

converting to this

List array = ["folder/1.png","folder/2.png","folder/3.png"]
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3

Answers


  1. 0
    1. Split the String like stringArray.split(",");
    2. Map them like this stringArray.map((file) => file.replaceAll("[", "").replaceAll("]",""));
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  2. 0

    Lets say you have this:

    String stringArray = "[folder/1.png,folder/2.png,folder/3.png]";

    You can parse it with jsonDecode method, like this:

    String stringArray = "[folder/1.png,folder/2.png,folder/3.png]";
var newStr = stringArray
    .replaceAll("[", '["')
    .replaceAll(",", '","')
    .replaceAll("]", '"]');

var converted = json.decode(newStr).cast<String>().toList();

    your result would be:

    //["folder/1.png","folder/2.png","folder/3.png"]
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  3. 0

    Try the following simple code snippet:

    void main() {
  String stringArray = "[folder/1.png,folder/2.png,folder/3.png]";

  stringArray = stringArray.replaceAll('[', '');
  stringArray = stringArray.replaceAll(']', '');

  var s = stringArray.split(',');
  List<String> newStringArray = [];

  for (var e in s) {
    newStringArray.add(e);
  }
  print(newStringArray);
}

    It’s now converted to List<String> and here’s the output:

    [folder/1.png, folder/2.png, folder/3.png]

    Note: IDEs ignore the quotation marks, usually not displayed.

    If you really want to surround that string with quotes replace the above for loop to that :

      for (var e in s) {
    var first = '"';
    var last = '"';
    e = first + e + last;
    newStringArray.add(e);
  }

    Here’s the output:

    ["folder/1.png", "folder/2.png", "folder/3.png"]

    Hope it helps you.

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