Summary  
This chapter covers the concept of fullstack development, focusing on integrating frontend and backend code to build complete systems that include user interfaces, servers, APIs, and databases.

General domain of usage  
Web application development


Fullstack development means working with both the **frontend** and the **backend** of an application.

Instead of focusing on only one part, a fullstack developer builds the entire system.


## **What Fullstack Developers Do**

A fullstack developer can:

* Create user interfaces (frontend);
* Build servers and APIs (backend);
* Work with data and databases.

They understand how all parts of an application connect.







Fullstack skills allow you to:

* Build complete applications from scratch;
* Understand how systems work end-to-end;
* Work more independently on projects.


Understand how the web works and how frontend, backend, and databases connect to form a complete application. Explore the role of fullstack development and the technologies used across the track, including HTML, CSS, JavaScript, React, Node.js, Express.js, and MongoDB. Build a clear mental model of how data flows through an application before starting hands-on development.

What Is Fullstack Development

What Fullstack Developers Do