Introduction

Modules are an integral part of modular and scalable front-end development. By splitting code into separate files and modules, complexity can be better managed.

This tutorial will provide an overview of what JavaScript modules are, why they are essential for modern web development, and how to use import and export syntax to create modular code.

We'll learn the advantages modules provide like encapsulation, organization, and reuse. We'll also walk through examples of importing and exporting at both the file and function level.

The goal is to understand ES modules and feel comfortable refactoring code into modular components you can efficiently manage, share, and scale. Modular programming reinforces separation of concerns and other coding best practices as well.