1.
• Introduction
• What is Express JS ?
• The need for Express JS
• Features of Express JS
• Advantages of Express JS
• Disadvantages of Express JS
• Companies using Express JS
What’s in It For You?

2.
Introduction to Express JS
Node.js is a JavaScript run-time environment that is
fast, but it does not support request handling, HTTP
methods or serving files, so this is where Express JS
comes into the picture.

3.
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
It is used as a server-side scripting language

4.
Need of Express JS
Money Efficient
Asynchronous
Time Efficient Fast
Easy to Learn

5.
Features of Express JS
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

6.
Features of Express JS
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

7.
Advantages and Disadvantages of Express
JS
 Express is very easy we can customize and
use it as per our needs
 A single language JavaScript is used for
front-end and back-end development
 It is very fast to link with databases like
MySQL, MongoDB etc
 No structural way to organizing things
 There are so many issues in
Callbacks
 The error messages are not very
helpful

8.
Companies using Express JS
As per the Enlyft.com there are 34,372 companies are using Express JS

9.
Key Takeaways
• Express JS is a lightweight framework which gives
functionality and make Node.js easy
• Express JS is trending so, most of the companies are
moving towards it.