Collections in Dart

When working with data in Dart, collections play a vital role in storing and managing multiple values efficiently. Dart provides three primary types of collections: Lists, Sets, and Maps. Understanding these data structures is essential for writing clean and efficient code. In this article, we’ll explore how to work with these collections and leverage the powerful where method for filtering data.

Read Medium story for free 👇🏻

Collections in Dart

Lists in Dart

A List is an ordered collection of elements that can contain duplicates. Lists are useful when you need to maintain the order of items and allow repeated values.

Creating a List

List<String> fruits = ['Apple', 'Banana', 'Mango', 'Apple'];
print(fruits); // Output: [Apple, Banana, Mango, Apple]

Accessing List Elements

You can access elements using their index:

print(fruits[0]); // Output: Apple

Modifying a List