MEAN and MERN STACK(software bundle)

MEAN vs MERN STACK(software bundle) :-

What is MEAN Stack?

MEAN is a free and open-source JavaScript software stack for building dynamic web sites and web applications.

The MEAN stack is MongoDB, Express.js, AngularJS (or Angular), and Node.js. Because all components of the MEAN stack support programs are written in JavaScript, MEAN applications can be written in one language for both server-side and client-side execution environments.

MERN stack

The components of the MEAN stack are as follows:


A number of variations on the traditional MEAN stack are available by replacing one or more of the components with similar (typically Javascript-based) frameworks. For example, in a MEAN stack, the JavaScript MVC framework Ember.js is used instead of Angular.

 $ git clone
$ cd mean
$ npm install && npm start

These are some of the advantages of a MEAN stack:

  • Single language is used in the whole application
  • Support for the MVC pattern
  • JSON is used for transfering data
  • Node.js’s huge module library
  • Open source so you can tweak it to your preferences if you’re an experienced user.

What is MERN ?

ReactJS – Rise of the MERN Stack

MERN stack

An alternative to Angular is React (sometimes referred to as ReactJS), a JavaScript library developed by Facebook to build interactive/reactive user interfaces. Like Angular, React breaks the front-end application down into components. Each component can hold its own state and a parent can pass its state down to its child components and those components can pass changes back to the parent through the use of callback functions.

MEAN vs MERN Stack

Angular vs React

While most developers can agree that the MEAN stack is a great option for modern app development, a large number are starting to advocate the use of React over Angular. Developers are now starting to talk in terms of MEAN vs MERN, the only difference being Angular or React. What’s got developers so hung up on these two options? Why one over the other? In this article, we discuss the differences between Angular and React and why you should choose one over the other.

Which is right for you?

At the end of the day, both are great options. While Angular has the backing of Google, React is a Facebook product. This means both products have great teams backing them and ample amounts of documentation, examples, etc. The decision to use one over the other largely boils down to personal preference, but here are a few reasons why you may choose one over the other.


React is arguably better for performance reasons. Angular 1 uses two way data binding and a digest cycle to constantly keep the view in sync with the underlying data model. This gets expensive when you have hundreds of variables to dynamically check and update. React uses unidirectional data flow to more efficiently check for state change. This plays better with larger data sets, where hundreds of thousands of records need to be rendered and updated. Although Angular 2 has introduced better state control, React is an easier and more intuitive way to handle change events.


This goes back to the whole library vs framework discussion. While React makes UI rendering a breeze, it’s just a library. It’s up to you as the developer how you organize your code to work with underlying data models, etc. As a framework, Angular enforces an MVC like design, forcing developers to better organized their code. Although React is more flexible, it leaves more up to the developer as to how the app is organized. This can make your code harder to maintain.

Third Party Libraries

React relies heavily on other third party libraries to make things happen. A great example is with http requests. React doesn’t have an out of the box solution for making http calls to a backend server. Angular has a built in $http service wrapper that makes http requests a breeze. Although libraries like Axios allow you to easily make requests in React, it requires more configuration.


Both the MEAN and MERN stack are equally viable options. It really boils down to personal preference. While React is definitively more performant than Angular 1, Angular 2 accounts for the pitfalls seen with its predecessor. Both options play equally well with other stack components (MongoDb, Express, Node). Deciding which one is best for you comes down to an emphasis on architecture, code maintainability, etc. Just remember that Angular 2 is the only true competitor to React.js when considering things like performance and server side rendering. When choosing between MERN or MEAN, consider Angular 2 vs React, not Angular 1.

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