Question 75882 in Flutter Question posted in
The official Flutter documentation can be found here.

How to remove unwanted Charactor in string dart – Flutter

I am confusing some string conversion in dart.

for example = String Stringsample = "['2022-11-24', '2022-11-30']";

Stringsample is String, not a List, so i want to get two item in this String, how to do that,

Expecting output be like:
  String str1 = '2022-11-24',
 String str2 = '2022-11-30',

How to do that, i am stucking this conversion, Please add your valuable replays

Tags:

3

Answers


  1. 0

    Here are three examples:

    import 'dart:convert';

void main() {
  final String stringSample = "["2022-11-24", "2022-11-30"]";

  final List<dynamic> listDynamicSample = json.decode(stringSample);
  
  final String str1 = listDynamicSample[0];
  final String str2 = listDynamicSample[1];
  
  print(str1);
  print(str2);
}

    import 'dart:convert';

void main() {
  final String stringSample = "['2022-11-24', '2022-11-30']";

  final List<dynamic> listDynamicSample = json.decode(stringSample.replaceAll("'", '"'));

  final String str1 = listDynamicSample[0];
  final String str2 = listDynamicSample[1];

  print(str1);
  print(str2);
}

    void main() {
  final String stringSample = "['2022-11-24', '2022-11-30']";

  final List<String> listDynamicSample = stringSample.split("'");

  final String str1 = listDynamicSample[1];
  final String str2 = listDynamicSample[3];

  print(str1);
  print(str2);
}
    Login or Signup to reply.
  2. 0

    Try the following code:

    String Stringsample = "['2022-11-24', '2022-11-30']";
String modifiedString = "";
List<String> datesList = [];

modifiedString = Stringsample.substring(1, Stringsample.length - 1);
datesList = modifiedString.split(",").toList();

String str1 = datesList[0];
String str2 = datesList[1];
    Login or Signup to reply.
  3. 0

    Unlike the above people, there is also a way to use regular expressions (I think this is better).

    String sample = "['2022-11-24', '2022-11-30']";

var test = sample.replaceAll(RegExp(r'''[[]'" ]'''), '').split(',');

String str1 = test[0];
String str2 = test[1];

// print(test); // [2022-11-24, 2022-11-30]
// print(str1); // 2022-11-24
// print(str2); // 2022-11-30
    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search