In this lesson, we will discuss about few useful functions related to List.

contains()

Search elements in the list and return the result in terms of true or false.

void main() {
List<String> movies=["Avengers","IronMan","Harry Potter-I","Harry Potter-II"];
  
print(movies.contains("IronMan"));
}

OUTPUT

true

indexOf()

Similar to contain function is also the search element remind in the list but returns the index of the found item.

void main() {
List<String> movies=["Avengers","IronMan","Harry Potter-I","Harry Potter-II"];
 print(movies.indexOf("IronMan"));
  
}

OUTPUT

1

insert()

Insert a new element In the list at a particular index that we define.

void main() {
List<String> movies=["Avengers","IronMan","Harry Potter-I","Harry Potter-II"];
movies.insert(2,"Venom");
print(movies);

}

OUTPUT

[Avengers, IronMan, Venom, Harry Potter-I, Harry Potter-II]

sublist()

Returns a part of the list from the index number that we mention. if only the starting number was mentioned list is made from the starting index till the end.

void main() {
List<String> movies=["Avengers","IronMan","Harry Potter-I","Harry Potter-II"];
List newList=movies.sublist(2);
print(newList);
  
}

OUTPUT

[Harry Potter-I, Harry Potter-II]