The document provides an overview of React.js and Express.js, emphasizing their roles in full-stack application development. React.js is a JavaScript library for building responsive web applications, utilizing features like one-way data binding and virtual DOM for performance. Express.js is a lightweight Node.js framework for developing APIs and web applications, offering middleware and routing capabilities for efficient server-side development.

2. • Introduction
• What is React JS?
• Features of React JS
• What is Express JS?
• Features of Express JS
• How to connect client side to server side
What’s in It For You?

3. Introduction
• Every application consists of frontend, backend and the database together they from full-stack
• React was created and maintained by meta and it is used to make web applications responsive
• Express is unopinionated and used to make API’s it is maintained by node.js

4. What is React JS?
React is a JavaScript library which is used to build mobile and web application fast and
interactive,
It is an open source, reusable component-based front-end library of JavaScript

5. JSX :
It is a syntax extension to
JavaScript, with react it is used
to describe how the UI should
look like
Virtual Document Object
Model (DOM) :
It defines how document are
accessed and manipulated in a
webpage
Performance :
There are several ways to
speed up your react
application by using virtual
DOM
Features of React JS

6. One-way data binding:
Information flows in one direction,
React receives information through
arguments and pass it by return
values
Extensions :
React goes beyond simple UI
and has many extensions for
complete application support
Features of React JS
Debugging :
There is a small browser
extension created by Facebook
to make react debugging easier
and faster

7. What is Express JS?
Express is a Node.js framework designed for building APIs, web applications and
cross-platform mobile apps, Express is high performance, fast, unopinionated, and
lightweight

8. Fast Server-Side
Development:
With the help of Node.js
features, express can save
a lot of time
Middleware :
It is a request handler,
which have the access to
the application’s request-
response cycle
Routing :
Refers to how an application’s
endpoints (URIs) respond to
client requests
Features of Express JS

9. Templating :
Creates a html template file
with less code and render
HTML Pages
Debugging :
Express makes it easier as it
identifies the exact part
where bugs are
Features of Express JS