In the previous lesson, you learned how to select a single element in a sequence based on its position or features. In this lesson, you’ll continue to discover other operations you can perform on an instance of List. You’ll see how to create a new list from an existing one by selecting one of its subsections. You’ll discover how to pick elements that have specific characteristics. Finally, you’ll learn how to create a new sequence that contains no duplicated items. In the capstone, you’ll use these operations to create a subset of movies that have specific characters.
In the previous lessons, you developed a program to store your contacts. Let’s recall that your program represents a contact record.