When we develop an application it is always important for us to get good results, and we need to find the most optimal way to achieve the results. Because the efficiency of application depends upon many factors that’s why selecting a technology stack is the most important factor. So Before moving to know about ‘What is MERN Stack?’ let’s discuss in short what is a technology stack.
What is Technology Stack?
It is a set of frameworks and tools used to develop an application. This set of frameworks and tools are specifically chosen to work together in creating well-functioning software.
Here are some widely used web development technology stacks:
- MERN (MongoDB, ExpressJS, ReactJS, NodeJS)
- MEAN (MongoDB, ExpressJS, AngularJS, NodeJS)
- LAMP ( Apache, Linux, MySQL, PHP)
Lets discuss in brief about What is MERN Stack?
What is MERN Stack?
As shown in the picture, the user firstly interacts with the ReactJS user interface components at the application front-end in the browser. This frontend is served by the application backend server through ExpressJS running on NodeJS. Any interaction or data change request is sent to the NodeJS based Express server, which gets data from the MongoDB database if required, and returns the data to the frontend of the application which is shown to the user. Let’s look in brief at these MERN Stack Components.
MongoDB is a NoSQL document-oriented database system. While other conventional relational databases have a typical schema design based upon columns and tables, But MongoDB is schema-less. In this MongoDB data is stored in flexible documents with a JSON based query language. The content, size, and number of fields in the documents can differ from one to another. This means that the data structure to be changed over time. MongoDB is known for its flexibility and easy to scale specialty. You can see multiple examples and real-time applications of this here.
It is a web application framework for NodeJs, It helps developers to simplify the task of writing server code instead of writing full server code by hand on NodeJS. In Express js you don’t need to repeat the same code again and again as would have with Node.js HTTP Module. It designed for building robust web applications and APIs. It’s known for its fast speed and minimalist structure, with many features available as plugins.
React is the defining feature of the stack. It’s is that component of MERN Stack that differs it from MEAN Stack. The MEAN stack is another very popular technology stack that uses AngularJS(A front end web application framework) instead of ReactJs.
Want to know more about MEAN Stack (Click here <)
4. NodeJs :
Benefits of working with MERN Stack :
The MERN stack uses the famous React.js Framework for the Front end Development, which is fantastic for front end development. We can’t compare it but mention a few big names that uses React.js for its unrivaled performance: Facebook, Airbnb, Atlassian, Tesla, Dropbox, etc.
React.js is based on the single-page application (SPA) which involves having a web application accessed from a single web page. This avoids loading a new page with each action like Facebook and Instagram etc. and makes for a greatly streamlined user experience. Facebook uses a single page application, which can be clearly felt in the comfort and effortlessness in excessing it.
Prerequisite to learn MERN stack :
- Basic Knowledge of HTML/CSS.
- Basic knowledge of React & React hooks is recommended.
- Basic knowledge of MongoDB, Express, and Nodejs is recommended.(You can prefer their Documentation to learn basic)
Where to Learn MERN Stack for Free :
There are various platforms where you can learn anything for free if you want to know more about them > Click here. Or If you want to learn through tutorials so you can check some of the Youtube channels like Freecodecamp.org, Clever Programmer, Programming with mosh, Telusko, etc.