Learn how to use the JavaScript map method to efficiently transform and manipulate arrays. This tutorial breaks down how map works, with easy-to-follow examples to help you master this powerful ...

Learn how JavaScript’s built-in functions like map() and filter(), as well as compose() and chain(), support a more elegant handling of JavaScript arrays.

The Map object in JavaScript provides several key methods for adding, retrieving and manipulating key-value pairs. The set() method is used to add or update a key-value pair in a Map.