What is the MEAN Stack?

The MEAN stack is a web application development framework based on JavaScript. MongoDB, Express, Angular, and Node are the four major technologies that make up the layers of the stack, and MEAN is named after them.

  • MongoDB - document database
  • Express(.js) - Node.js web framework
  • Angular(.js) - a client-side JavaScript framework
  • Node(.js) - the premier JavaScript web server
  • How Does the MEAN Stack Work?

  • It is a standard library that is a collection of thousands of classes and used to build an application. The BCL (Base Class Library) is the core of the FCL and provides basic functionalities.
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    Express.js and Node.js Server Tier

    Express.js, which runs on a Node.js server, is the next step down. Express.js describes itself as a "quick, unopinionated, minimalist web framework for Node.js," and it is precisely that. For URL routing (matching an incoming URL with a server function) and handling HTTP requests and answers, Express.js includes strong models. You can connect to Express.js functions that power your application by sending XML HTTP requests (XHRs), GETs, or POSTs from your Angular.js front end.

    MongoDB Database Tier

    If your application stores any data (user profiles, content, comments, uploads, events, etc.), then you’re going to want a database that’s just as easy to work with as Angular, Express, and Node. That’s where MongoDB comes in: JSON documents created in your Angular.js front end can be sent to the Express.js server, where they can be processed and (assuming they’re valid) stored directly in MongoDB for later retrieval..


    Advantages of the MEAN Stack

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

  • Workflow management tools
  • News aggregation sites.
  • Todo and calendar applications
  • Interactive forums.
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