The document serves as a comprehensive guide for beginners on the MEAN stack, which is a JavaScript-based web application development framework comprising MongoDB, Express.js, AngularJS, and Node.js. It highlights the advantages of using the MEAN stack, such as flexibility, performance, and security, along with real-world applications in companies like PayPal, Netflix, and Gmail. The article concludes by encouraging readers to pursue further training to enhance their skills in MEAN stack development.

1. A COMPLETE GUIDE ON MEAN STACK FOR
BEGINNERS
INTRODUCTION
Developers have always valued the ability to build apps on consolidated
stacks of fundamental technologies. Instead of gluing together multiple
disparate aspects, they may focus on solutions that differentiate the
company by utilizing predetermined components. The MEAN stack provides
several features that may make development easier and faster. It also uses
current single-page applications by avoiding the need to refresh a webpage
for each server, as most old application forms do. Therefore, to understand
this concept in deep, it is essential to either refer to this article till the end or
enrol in the Mean Stack Training for a more advanced approach to move
closer to your professional goals.

2. MEAN STACK: MEANING
The MEAN stack is a JavaScript-based web application development system.
It comprises four primary components, i.e., MongoDB, Express, Angular, and
Node.
● MongoDB is a database system
● Express.js is a web framework
● Angular.js is a client-side JavaScript framework.
● Node is the most popular JavaScript web host (.JS).
DIFFERENT COMPONENTS OF MEAN STACK
MEAN comprises four significant components, which are as follows:
MONGODB
MongoDB is a popular database server that uses binary JSON to store data
structures. However, you may classify this technology as a NoSQL database
application that helps in the effective handling of large-scale data collections.
EXPRESS.JS
It is a lightweight open-source framework for developing back-end web
applications. Its versatility simplifies back-end development for developers.
ANGULAR
AngularJS is an advanced open-source front-end framework based on
JavaScript. You can use this technology to create single-page web apps.
However, many developers utilize the Angular 2+ versions, which we call
Angular.

3. NODE.JS
It is an open-source, cross-platform JavaScript runtime environment.
Moreover, it's an excellent framework for building high-performance,
scalable server-side applications.
SIGNIFICANT ADVANTAGES OF MEAN STACK
The MEAN Stack provides various advantages for web application
development. Let's look into these benefits.
FLEXIBILITY
The MEAN Stack is an excellent choice for developing scalable web
applications. It enables developers to add new features with reasonable
simplicity. However, they may accomplish this by utilizing Express on the
backend and Angular on the front end.
PERFORMANCE
MEAN Stack is suitable for developing high-performance web apps. It
processes a large number of requests smoothly and seamlessly.
SECURITY
The MEAN Stack is also secure, with various security mechanisms to assure
data security. Moreover, it uses encryption and authentication to improve
security.
FLEXIBILITY
The MEAN Stack is adaptable. This allows developers to create highly
customized web apps. Moreover, they may easily add new features to their
apps or modify old ones.

4. APPLICATIONS OF MEAN STACK
The few real cases of MEAN Stack are as follows:
PAYPAL
PayPal is an advanced money-transfer service. It came into existence using
HTML, Templates, and JavaScript on both the application and database sides.
Moreover, PayPal employs two distinct front-end and back-end
programmers who use AngularJS and NodeJS, respectively.
NETFLIX
Netflix is a well-known subscription service that makes use of MEAN
technology. However, the streaming site uses AngularJS to investigate a
variety of patterns. Moreover, the Netflix back-end is in Java, and the front-
end part is in Java Script.
AUTOMATIC DATA PROCESSING
The Automatic Database Design system is a recruiting and selection method
that largely relies on large datasets. However, it has about 41000 clients and
over a million users.
Moreover, the application keeps track of sensitive papers such as pay stubs,
health records, and insurance policies. Also, you may use MongoDB to build
the ADP Mobile Applications application.
GMAIL
Google endorses AngularJS as the best alternative for building quick and
scalable internet applications. According to Google, developers use the
Angular framework for interface design. In actuality, Gmail is a traditional
SPA built using AngularJS. Gmail opens the computer for a specific HTML
page and refreshes it once.

5. LINKEDIN
LinkedIn came into existence on a process-based JavaScript on Rails
architecture. As the company expands, it requires a versatile solution for a
long-lasting app. As a result, LinkedIn transitioned to Node.js and discovered
its numerous benefits. The MEAN stack helps in the enhancement of the web
platform's capabilities. LinkedIn has 760 million daily users and over 260
million unique visits.
CONCLUSION
Hopefully, you may find this article informative. We have compiled a basic
overview of the MEAN Stack. So, by looking at this, if you are eager to enter
into a career as a specialist, we suggest you enrol for the Mean Stack Course
from a reputed institute.