Mern V/s Mean? Choosing The Right Technology Stack - Vindaloo Softtech

By Author: Sandip Patel
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What do you presume is common between Microsoft Silverlight, Adobe Flash, and Java Applets? They were the hottest technology in 2010’s that can be considered as the foundation of web application development.
Rise of Software Stacks
Due to security concerns and them struggling to keep up as internet technology evolved, they were succeeded by newer technologies such as JavaScript as well as existing technologies such as Python and PHP. Modern web applications are developed using a combination of technology stack commonly known as Software Stacks.
Software stacks mean that different technologies are used for coding the different aspects of an application. Together they work together as the gears in a mechanical system and keep the software operating smoothly.
MEAN or MERN
The difference between both technology stacks lies in the front-end framework being used. MEAN stack uses Angular.js while MERN stack relies on React.js to run the code in the browser. MEAN stack was developed by Google in 2009 and is commonly used for building large-scale apps. Paypal, Upwork, and Forbes are major applications ...
... built using MEAN stack.

Source: Tutorialspoint
MERN stack was developed by Facebook in 2013 and is useful for building small apps faster. Facebook, Netflix, and Discord are three major applications built on MERN stack.

Before we learn the core differences between MEAN and MERN stack, let’s learn the similarities between both:
MEAN and MERN Similarities
Except for the Front-end framework, both stacks use MongoDB, Express.js, and Node.js. MongoDB is a highly popular document database.that allows applications to store data as JSON (JavaScript Object Notation). Express.js is a popular open-source back-end web application framework based on Node.js that can manage HTTP requests, render basic routing, and create APIs. Node.js is a popular open-source runtime environment choice for web app development by many developers. It supports asynchronous event-driven programming and you get access to many useful community-built open-source tools and frameworks.
The other similarities between each technology stack are:
• Open source frameworks
• Both support MVC (Model View Controller)
• Organize the UI layer components with the help of optimum code
• Access a pre-built set of testing tools
• Protection from cybersecurity risks and vulnerabilities such Cross-Site Scripting (XSS)
• Vast and robust community
MEAN v/s MERN: Core Differences
Now that we have learnt the similarities, it is now time to get into the meat of the topic, i.e., the difference between MEAN and MERN stack. For sake of understanding, we have broken down the differences into smaller chunks.
Learning Curve
When it comes to MEAN stack development, Angular has a steep learning curve as it is comprehensive and employs typescripts and templates. On the other hand, MERN stack development has a comparatively shallower learning curve as React has a richer documentation. MERN has an upper hand at this factor.
Third Party Library Support
Angular has been a popular framework and hence has a robust library that a MEAN stack developer can leverage for different functionalities such as HTTP requests and backend connections. React is a comparatively newer framework and doesn’t have different libraries to fulfil certain functionalities. Moreover, MERN stack developers need to enable additional settings to integrate 3rd party libraries.
Data Flow
Angular has a bidirectional data flow whereas React only supports unidirectional. This means in the MEAN stack, the model status can be altered by changing the UI, while in MERN, the UI can only be changed when the model state is changed. This is not disadvantageous as the unidirectional data flow of React, allows developers to manage large projects efficiently. Similarly, the bidirectional data flow nature of Angular allows practicality required in small projects.
Developer Expertise
Due to lack of documentation in Angular, the knowledge and expertise of the development team is crucial when offering MEAN stack development services. For a reasonably knowledgeable development team, MERN stack is a better alternative.
MVC Architecture
While both technology stacks support MVC architecture, you need an up-to-date architecture when designing an app on a business level. MEAN stack’s UI is independent of the intermediate layer and hence is suitable for enterprise-level projects. MERN, on the other hand, uses JSX for writing and adding HTML code in React, this allows scaling and project structure to the code.
Security
Angular and Node.js are supported by JSON Web Token (JWT). So it secures any unauthorized access to any resource, to encrypt your sensitive data. Moreover, you can implement a cookie-based session by storing the cookie data on the client side. MERN supports authentication methods but it is less secure compared to MEAN stack, as it cannot prevent CSRF (Cross-site Request Forgery) attacks.
Performance
MEAN has a better edge over MERN when it comes to performance. MEAN being a pre-configured framework and using native DOM (Document Object Model), offers slightly better app performance. MERN requires separate configuring and utilizes virtual DOM that increases the rendering time needlessly.
Which to Choose? MEAN or MERN?
MEAN and MERN remain to be state-of-the-art full-stack technology that enables remarkable applications to be developed. Each has excellent characteristics so choosing one would be a tricky issue. Your choice will heavily depend on the benefits each stack brings to the table.
Benefits of MEAN STACK
• It is simple to create any type of application.
• This stack is compatible with a variety of plugins and widgets. This is useful for development that must be completed within a specific time range.
• Due to the availability of plug-ins, the functionality skyrockets.
• Because the framework is open source, developers have access to community support.
• The built-in tools allow for real-time testing.
• Both the back end and the front end are written in the same language. This improves synchronisation and enables applications to reply more quickly.
Benefits of MERN STACK
• A single coding script covers both the front end and the back end.
• Only JAVA and JSON are required to finish the operation.
• The MVC architecture allows for seamless development.
• Built-in tools allow for real-time testing.
• Runs on an open source community with easily modifiable source code.
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