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What is Mern Stack and Why Mern Stack Professionals are so much in demand in companies?

Choosing the right technology stack is challenging, whether you are a developer or an entrepreneur who wants to develop a web or mobile application. Thus, you might come across a circumstance to choose from the best stack.

When choosing the right technology stack, you must be intelligent enough to compare different stacks to determine which will work better for your business. Thus, try to dig deep into similarities, contrasts, and perks for a complete understanding. So, pick one accordingly.

What is MERN Stack?

M- MongoDB
E- ExpressJS
R- ReactJS
N- NodeJS

MERN stack is an open-source framework that makes application development easy and quick. It is the best hybrid web app and mobile app development platform. It is a collection of technologies that enables faster application development and is used by developers worldwide.

The MERN stack's primary purpose is to develop apps using JavaScript only, and this is because the four technologies are all JS-based.

MERN Stack Components

There are four main components of the MERN stack:

  • • The first one is MongoDB, a NoSQL database management system.
  • • The second one is ExpressJS, a backend web application framework.
  • • The third one is ReactJS, a JavaScript library for developing UIs based on UI components.
  • • The final one is NodeJS, a JS runtime environment, i.e., it enables running JavaScript code outside the browser.

Let's learn more about these elements:

MongoDB

MongoDB is a NoSQL database management system that uses JSON-like documents. It enables developers to create databases, schemas, and tables. It's prominent with development teams using agile methodologies and offers the Mongo shell that provides a JS interface.

ExpressJS

ExpressJS is a NodeJS web application framework that simplifies writing the backend code and saves you from generating multiple Node modules. ExpressJS helps in building web applications and APIs.

ReactJS

ReactJS is a JavaScript library that allows the creation of user interfaces for mobile apps and SPAs. It allows you to code JavaScript and develops UI components; the JavaScript library uses virtual DOM to do everything.

NodeJS

NodeJS is a backend JavaScript runtime environment allowing developers to run the server's code. It enables them to select from a wide selection of node modules or packages. Being developed on the Chrome JavaScript Engine enables NodeJS to execute code faster.

Advantages of MERN Stack MERN stack is the best choice for companies who want to develop superior-quality web applications. Apart from using high-performance and customized technologies, this stack allows for web applications and software to be created quickly.

MERN stack offers a library with an easily available interface enabling users to execute code fastly and supporting an easy development process.

MERN stack uses React.js, which is excellent for front-end development. A few leading names use React.js for its superior performance, namely Airbnb, Facebook, Dropbox, Tesla, etc.

Future of MERN Stack professionals

Mastering any skill demands dedication and effort. And as much as we want, we don't have time to master multiple skills. But we have enough to be professionals in a domain or two, perhaps three to four if you are brilliant.

For this, we must choose our passions and profession wisely if we meet success sooner.

So, how will one know which profession will work best in their favor? By observing their interests and studying the market growth over the years, you have to stay sharp and analyze before taking that leap of faith. Most enterprises driven by technology and innovation are reaching new heights. As an enterprise grows, so does the scope of golden opportunities for the ones working in that sector.

One such industry is a hub of brilliant careers in the software industry, and one of the more rewarding roles of this industry is that of a MERN Stack Developer.

To understand why the MERN stack developers are so in demand, we must first look at the technology and the MERN stack's future scope.

Future Of MERN Stack Developers

To state the obvious, the future can't be predicted. But we can undoubtedly observe the growth of MERN stack developers based on our enterprise data. So, what are the advantages of mastering the MERN Stack for professionals?

1. Open source: The best part about the MERN stack is that all four technologies that make up the stack are accessible. This makes it easier for professionals to find swift solutions from the available open portals and effectively fix the issues that may arise during development.

2. Cost-Effective: MERN Stack professionals are in high demand because this stack uses one JavaScript language. It is beneficial for companies to invest in professionals with expertise in MERN. This is a more cost-effective solution, both in terms of time and money, compared to hiring different specialists for different technologies.

3. Easy to handle between client and server: Regarding MERN Stack, everything is written in one language, making it much simpler for developers to master the language.

4. UI performance: React JS is the best UI layer abstraction, rendering, and performance solution. It gives users the freedom to build and organize the application code according to their vision. A MERN Stack professional is in high demand in companies as they have proven expertise in JavaScript, React, Node.js, MongoDB, and Express. They are well-versed in front and backend development and know the importance of teamwork to ensure a fantastic user experience. They are familiar with Git Repository, Jira, and the integration of data storage solutions.

Madrid Software offers online skill-up courses in various domains, from data science and business analytics to software development, AI, and machine learning. You can take the MERN Stack course in Delhi to upgrade your skills and advance your career.

The curve only goes higher regarding career progression for MERN stack professionals. If you are skilled enough, you can grab the right opportunities and an impressive MERN Stack Developer salary. Enroll in the MERN stack course in Delhi at Madrid Software to equip yourself with the right skills. Why us? Industry experts design our course. It teaches students how to create an application using the MERN Stack programming language efficiently. We have our MERN Stack Institute in Delhi.

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  •   MongoDb

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    •   ReactJS

    •   REDUX

    •   Mongoose

    •   API Development


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Mern Stack Interview Q & A


1.How does Node.js handle child threads?

Node.js, in its essence, is a single thread process. It does not expose child threads and thread management methods to the developer. Technically, Node.js does spawn child threads for certain tasks such as asynchronous I/O, but these run behind the scenes and do not execute any application JavaScript code, nor block the main event loop.

2. What is prop drilling?

When building a React application, there is often the need for a deeply nested component to use data provided by another component that is much higher in the hierarchy. The simplest approach is to simply pass a prop from each component to the next in the hierarchy from the source component to the deeply nested component. This is called prop drilling.

3.What is Replication in MongoDB?

Replication is the process of synchronizing data across multiple servers. Replication provides redundancy and increases data availability. With multiple copies of data on different database servers, replication protects a database from the loss of a single server. Replication also allows you to recover from hardware failure and service interruptions.

4.What is routing and how routing works in Express.js?

Routing refers to determining how an application responds to a client request to a particular endpoint, which is a URI (or path) and a specific HTTP request method (GET, POST, and so on). Each route can have one or more handler functions, which are executed when the route is matched.

5.What do you mean by Asynchronous API?

All APIs of Node.js library are aynchronous that is non-blocking. It essentially means a Node.js based server never waits for a API to return data. Server moves to next API after calling it and a notification mechanism of Events of Node.js helps server to get response from the previous API call.

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