AngularJS is a structural framework for dynamic web apps. It lets you use HTML as your template language and lets you extend HTML's syntax to express your application's components clearly and succinctly. AngularJS's data binding and dependency injection eliminate much of the code you would otherwise have to write. And it all happens within the browser, making it an ideal partner with any server technology.

AngularJS is what HTML would have been, had it been designed for applications. HTML is a great declarative language for static documents. It does not contain much in the way of creating applications, and as a result building web applications is an exercise in what do I have to do to trick the browser into doing what I want?

The impedance mismatch between dynamic applications and static documents is often solved with:

  • A library - a collection of functions which are useful when writing web apps. Your code is in charge and it calls into the library when it sees fit. E.g., jQuery.
  • Frameworks - a particular implementation of a web application, where your code fills in the details. The framework is in charge and it calls into your code when it needs something app specific. E.g., durandalember, etc.

AngularJS takes another approach. It attempts to minimize the impedance mismatch between document centric HTML and what an application needs by creating new HTML constructs. AngularJS teaches the browser new syntax through a construct we call directives. Examples include:

  • Data binding, as in {{}}.
  • DOM control structures for repeating, showing and hiding DOM fragments.
  • Support for forms and form validation.
  • Attaching new behavior to DOM elements, such as DOM event handling.
  • Grouping of HTML into reusable components.


MEAN Stack is a relatively new stack that stands for Mongo DB, Express.js, Angular JS, and Node JS. MEAN is a JavaScript stack used primarily for cloud-ready apps. Understanding why you might use it, identifying examples of when you might use it, and delving deeper into the various components will all aid you in getting the most out of MEAN for software development.

If you want to learn how simple it is to design and deploy an application to the cloud using a MEAN stack, Aparajayah provides a short guide for building a modern application in a MEAN Stack.

A MEAN Stack Developers is an IT professional who develops web apps using a collection of JavaScript technologies.


  • M stands for MongoDB (NoSQL database)
  • E stands for Express JS (A backend web application framework for Node.js)
  • A stands for Angular JS (JavaScript based open-source frontend web framework to develop single page applications front end framework)
  • N stands for Node JS (An open source, cross-platform run-time environment for developing server-side and network applications)


With a cross-platform write once approach, MEAN applications can be used in a variety of ways. While MEAN is best suited to real-time applications, particularly those that run natively in the cloud, and single-page (dynamic) web applications built in Angular.js, it can also be used for other applications such as:

  • Workflow management tools.
  • News aggregation sites.
  • It aids in the speedy development of apps.
  • Interactive forums.
  • As an overhead, it utilizes extremely little memory.
  • It is responsible for the overall organization of the application.
  • It aids in the avoidance of all unneeded groundwork.