Dart check if part of a string in a a list of strings contains an element

user_12887485 0
Viewed 7027

I have a string:

String s = "Hel";

I have a list of Strings.

List<String> listS = ["Hello", "Goodbye"];

The following will print true as "Hello" contains "Hel":

list[0].contains(s);

The following will however print false:

list.contains(s);

What can I do to check if the list contains string S without giving an index? A loop is no option as I am using a ternary operator:

list.contains(s) ? .....
dart flutter
2 Answers

Check whether any element of the iterable satisfies test

test(String value) => value.contains(s);

listS.any(test);
user_127854900

You can loop for every item an return true whenever an item contains the string as shown here :

String s = 'Hel';

  List<String> list = ['Egypt', 'Hello', 'Cairo'];

  bool existed = false;
  list.forEach((item) {
    if(item.contains(s)){
      existed = true;
      print(item);
    } 
  });
user_129959660
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