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What is the MERN Stack?

MERN stands for MongoDB, Express, React, Node after the four key client-side & sever-side technologies that make up the stack.

  • MongoDB – document database
  • Express(.js) – Node.js web framework
  • React(.js) – a client-side JavaScript framework
  • Node(.js) – the premier JavaScript web server

Express and Node make up the middle (application) tier. Express.js is a server-side web framework, and Node.js is the popular and powerful JavaScript server platform. Whichever version you choose, ME(RVA)n is the ideal way to work with JavaScript and JSON.

Basic MERN stack architecture

The MERN architecture allows you to easily build 3-tier architectures (frontend, backend, database) entirely using JavaScript and JSON.

What is the MERN Stack?

MERN stack architecture

React.js Front End library:

The top level of the MERN stack is React.js, a declarative JavaScript framework for building dynamic client-side applications in HTML. React lets you build complex interfaces through simple components, connect them to data on your backend server, and render them as HTML.

React’s strong suite is handling stateful, data-driven interfaces with minimal code and minimal pain, and it has all the bells and whistles you’d expect from a modern web framework: forms, error handling, events, lists, and more. Great support for a lot.

 

MERN Project Development:

With the passage of time, the role of developers has also changed. Initially, when developers preferred to specialize in one segment i.e. backend or frontend, now developers are constantly moving towards becoming a full stack web developer. Having knowledge of all aspects of web development i.e. frontend, backend and everything in between gives a great command over web development. And this is the reason why the demand for full-stack web developer has increased tremendously today.

According to Stack Overflow’s annual developer survey for the past few years, more than 50% of developers worldwide are full stack developers. Full stack technologies provide everything needed to build a fully-functional modern web application. These consist of at least one frontend framework, a backend solution, and a database. And by far the most popular web technologies make up the MERN (MongoDB, Express.js, React, Node.js) full stack.

 

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