Array Lists
Explore how to work with JavaScript array lists by understanding their dynamic capabilities and index-based access. Learn key operations such as adding and removing elements, searching, looping using different techniques, and cloning arrays. This lesson prepares you to manage data collections effectively in front-end development.
What are array lists?
An array list is a list where each list item can be accessed with an index number (like the elements of an array). A JavaScript array represents the logical data structure of an array list. Using the term “array” instead of “JavaScript array” creates a terminological ambiguity. To keep it simple during this lesson, we’ll say “array” when we mean “JavaScript array” for the most part.
A variable may be initialized with a JS array literal, like this:
Like all array lists, JavaScript arrays can grow dynamically. It’s possible to use indexes greater than the array’s length. For instance, after the array ...