MERN Stack Full Form
MERN Stack is a compilation of four different technologies that work together to develop dynamic web apps and websites.
It is a contraction for four different technologies as mentioned below:
Considering you’ve downloaded and configured all the four aforementioned technologies, you need to know how to create a new project folder to get started with the MERN stack. Next, you need to open the folder on the CMD (or terminal) and enter the following command to initialize a package.json file:
A standard JSON package looks as shown below:
You can install modules by using:
npm install module_name -save
MERN Stack Components
There are four components of the MERN stack. Let’s discuss each of them one by one.
- The first component is MongoDB, which is a NoSQL database management system.
- The second MERN stack component is ExpressJS. It is a backend web application framework for NodeJS.
Let’s learn more about these MERN Stack components:
MongoDB is a NoSQL DBMS where data is stored in the form of documents having key-value pairs similar to JSON objects. MongoDB enables users to create databases, schemas, and tables. It offers the Mongo shell that provides a JS interface for deleting, querying, and updating the records.
ExpressJS is a NodeJS framework that simplifies writing the backend code. It saves you from creating multiple Node modules. For keeping the code precise, ExpressJS offers a range of middleware.
Why Should You Work With MERN Stack?
MongoDB, which is the base of the MERN stack, is designed to store JSON data natively. Everything in it, including CLI and query language, is built using JSON and JS. The NoSQL database management system works well with NodeJS and thus, allows manipulating, representing, and storing JSON data at every tier of the application.
It comes in a variant called MongoDB Atlas that further eases database management by offering an auto-scaling MongoDB cluster on any cloud provider and with just a few clicks.
Express is a server-side framework that wraps HTTP requests and responses and makes mapping URLs to server-side functions easy. This perfectly complements the ReactJS framework, a front-end JS framework for developing interactive UIs in HTML while communicating with the server.
Use Cases of MERN
Like other popular web stacks, it is possible to develop whatever you want in MERN. Nonetheless, it is ideal for cloud-based projects where you require intensive JSON and dynamic web interfaces. A few examples of purposes where MERN is used are:
Calendars and To-do Apps
A calendar or a to-do app is a rudimentary project that can tell you a lot about the mechanics of the MERN stack. You can design the frontend, i.e., the interface of the calendar or to-do app using ReactJS. The data to be stored, accessed, modified, shown in the to-do app is made possible using MongoDB.
Another suitable use case for MERN is an interactive forum, which can be a social media platform or a website that allows users to share messages and communicate. The topic of the interactive forum may or may not be predefined.
Social Media Product
An interactive forum is just one use of the MERN stack for social media. These include ads, posts, a mini web app embedded in the social media page, etc.
Advance your career as a MEAN stack developer with the Full Stack Web Developer - MEAN Stack Master's Program. Enroll now!
Contemporary web developers with enough experience in React and JS prefer developing intuitive applications using the MERN stack. To know in-depth about using the MERN stack, you can opt for the Post-Graduate Program In Full-Stack Web Development by Simplilearn. Offered by Caltech CTME, Full-stack Web Development Program is a descriptive online bootcamp that includes 25 projects, a capstone project, and interactive online classes. In addition to the MERN stack, the course also details everything you need to become a full-stack developer.
Simplilearn also offers free online skill-up courses in several domains, from data science and business analytics to software development, AI, and machine learning. You can take up any of these free courses to upgrade your skills and advance your career.