MEAN Stack vs. MERN Stack

Oct. 11, 2021, 6:38 p.m.
Beginners React · 3 min read
MEAN Stack vs. MERN Stack

Full-stack web development is gaining prominence in the field of web development, and this full-stack developer provides perfect solutions for front-ends, back-ends, testing, and mobile applications. The demand for a full-stack developer is increasing dramatically in today's world. Usually, full-stack developers are capable of handling the entire structure of a project. Frameworks such as MEAN stack or MERN stack exist for full-stack development. Let's see how they differ.


What is MEAN?

A MEAN stack is an acronym for MongoDB, ExpressJS, AngularJS, and Node.js Framework. Developers can create mobile and web applications quickly and easily using this framework and, there are several components of MEAN.

  • MongoDB is where back-end applications store their data as JSON files.
  • ExpressJS back-end is built upon Node.js.
  • AngularJS, code is run in the browser.
  • NodeJS provides a runtime environment for JavaScript to run on the back-end of web applications.

The whole code is written in JavaScript, which is one of the significant advantages of using the MEAN stack. Beginners can quickly learn and explore it. In addition, its unified offerings facilitate faster and cheaper development. Several libraries and modules support the MEAN stack and make it possible to develop a minimum viable product.

The MEAN stack is a JavaScript framework for creating web applications that can easily handle JSON.

Front-end Angular.js: Angular.js is the top MEAN stack component. In its own words, it is a "JavaScript Framework." You can use Angular.js to add metadata to your HTML tags for more dynamic, interactive web experiences.

Server tier in Express.js and Node.js: Express.js runs on a Node.js server as the next step of the MEAN stack. Node.js Express.js provides fast, minimalist web frameworks. Integrated models for URL routing and HTTP request and response handling are available in Express.js.

MongoDB Database Tier: If we wish to store data, we must use a database such as MongoDB. By sending JSON documents generated by the Angular.js front end to the Express.js server, these documents can later be retrieved directly from MongoDB.

Several popular business websites use it as a back-end, including eBay, AliExpress, etc.


What is MERN?

The MERN stack is an acronym that stands for MongoDB, ExpressJS, ReactJS, and Node.js. With this framework, you can build web and mobile applications quickly and easily by using Java as its main component. This framework includes the following components.

  • MongoDB database is a document-oriented, no-SQL store used for storing back-end applications.
  • ExpressJS is the back-end structure, and the functionality of your website will be taken care of by a NodeJS-based layered framework.
  • ReactJS is a single-page web application that can construct user interface components.
  • NodeJS is a software runtime environment for JavaScript

The MERN stack works as follows:

Using React.js for front-end development: React.js is one of the top development stacks. The framework integrates an expressive JavaScript language to enable developers to create dynamic client-side applications. Through React.js, we can build complex interfaces through simple components and connect them to the back-end.

As described above, the Express.js and Node.js server tiers play the same role in the MERN stack as they do in the MEAN stack.

The MongoDB database tier is the same in both the MERN and MEAN stacks as described above.

Several popular business websites use it, including Yahoo!, Discord, CNN, etc. 


The difference between MERN and MEAN stacks


MEAN Stack

  • Node.js, Angular, MongoDB, and Express are its core technologies.
  • The framework is based on JavaScript.
  • It uses Typescript as its programming language.
  • It provides better productivity.
  • It has a steep learning curve.
  • It facilitates the management and rendering of code.
  • There is a bidirectional data flow.
  • Apps for mobile devices are not supported.


MERN Stack

  • MongoDB, React, Express, and Node.js make up the technology stack.
  • This is a free, open-source library for JS.
  • The application is built using JavaScript and JSX.
  • Its productivity is low.
  • Better documentation can be found there.
  • Ensures smooth rendering
  • Data flow through it is unidirectional.
  • It is compatible with mobile applications.

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