How to remove a string date exist in a list of Strings in dart?

Question

I have a list of strings and one if it's items looks like this '19-06-2022 12:37' ..

How can i remove any pattern like this if it exist in the list using Dart language ?

Answer 1

You can remove any pattern from string by using String class method replaceAll . If you want to remove any pattern then you need to use RegExp like below example.

There are also other method like replaceFirst , replaceRange for more details Read Here

 String testSt = "12-02-2022 16:23";

 String myPattern = "^([0]?[1-9]|[1|2][0-9]|[3][0|1])[./-]([0]?[1-9]|[1][0-2])[./-]([0-9]{4}|[0-9]{2}) [012]{0,1}[0-9]:[0-6][0-9]";

 testSt.replaceAll(new RegExp(myPattern),"");

Answer 2

You can try like this:

   List<String> stringList = ["20-11-2022 12:37", "19-06-2022 12:37", "19-03-2022 12:37", "09-06-2022 12:37", "x", "y", "z","w"];
   stringList = stringList.where((element) => !element.contains("-")).toList();