What is MERN | Web applications | All-time-dev
- What is MERN Stack
- Components of MERN stack.
- How does MERN Stack work?
- Use Cases Of MERN Stack
- Is MERN Stack a full-stack solution?
- Conclusion (Why is it good for you).
In this post, we will discuss the best web development stack MERN which you can use to create your web apps and can also use to create API apps, etc. In all the stacks MERN has a good demand in the market and you can use them as a freelancer to make part-time income if you want. Today we will discuss different aspects of MERN. So, if you will like our today's post then share it with your developer friends and let them know about us.
What is MERN Stack?
As of now, it is the most demanding stack in the field of web app development. It includes Mongo DB which is a document database, Express JS which is a framework of NODE JS, React JS which is used for the front end and it is a client-side JavaScript framework, and last but not least our beloved Node JS which we all know used for backend and it is a JavaScript runtime and also a web server from JavaScript.
All of these are used together for creating full-stack web applications with help of JavaScript and it makes it easier to develop web apps easier and faster because all the languages in every stack are associated with JavaScript or they are based on JavaScript only like MERN, MEAN, MEVN and more which means if you have a good knowledge of JavaScript then this languages will be easier for you to learn.
Components of MERN stack
There are four components of the MERN stack for different works which we will discuss now and if you want to know more about the components then I have already discussed all the components in the how men stack works section you can read that section for brief information about all components -
- Mongo DB (DBMS)
- Express JS (a simple web application framework for a backend that runs under Node JS)
- React JS (JavaScript framework for creating the looks of a website using JavaScript).
- Node JS (JavaScript Runtime used as a server to send the data to the database to store it).
How does it work?
The MERN stack allows you to create a three-tier architecture that is built using JSON and JavaScript and the three tiers are -
- front-end (the interface that the user sees).
- back-end(the end that cannot be seen and accessed by the user and connects the database with the front).
- Database(the place where user data is stored and kept secured
Front end (The first tier)
React JS
This tier is constructed using React JS which is a JavaScript framework that helps you create the appealing look or interface of a website using dynamic client-side applications in HTML using simple components, and helps you connect the data to the backend of a website and renders it as HTML.
React JS helps you create beautiful or modern interfaces using minimal code and it has almost everything that you want for creating a front-end of a website including error handling, a big community, and good docs for problem-solving, events, lists, components, beautiful admin templates and UI kits, etc.
Backend (The second tier)
Express JS and Node JS
This second tier which is important for creating a web application using MERN is Express JS which runs inside a Node JS server is a fast, server-side Node JS framework that is used for handling and responding to HTTP requests and making mapping URLs.
Making HTTP requests or GETs or post requests which you can send with the help of React JS help you to communicate with the server aka Node JS and access the Express JS functions easily. These functions are very important because they use Mongo DB's Node JS drivers or they use callbacks to make use of Promises which help you to access and update data on your database.
The features of Express JS
- It helps you to develop the server-side faster.
- It helps you in routing.
- It helps you in templating.
- It helps you in debugging.
- It is open-source and has a big community that will help to solve the issues you might face while using Express JS.
The features of Node JS
- It is very fast.
- Can easily be used if you know JavaScript.
- It is single-threaded it is very scalable.
- It has no buffering.
Database (The third tier)
Mongo DB
The last and the third tier is a database and for this, we are definitely going to use Mongo DB which is a DBMS (Database Management System) that is used to store information like Name, Password, date of birth, topic, use, etc that the users fill as an input in foams, cart, etc.
This information is later stored in the Database and the end which makes a connection between the front end and the database is called the backend which we have studied in the second tier.
Here in the front end when the JSON documents are created they are sent to the express JS (where they get processed) and then, at last, they send to the Mongo DB for later use.
Use Cases Of MERN Stack
There are a lot of use cases of the MERN stack like you can create your own portfolio websites, you can create interactive news websites using APIs and Todo List and calendars, etc. Basically, it is ideal for heavy JSON work, creating dynamic web interfaces, and more. But we are going to only cover some of the use cases that will be beneficial for your understanding. Its use cases are -
Interactive forums
One of the best use cases of the MERN stack is creating interactive forums which can be anything on a social media website like Facebook or Instagram where you can watch videos, and images and can also add your comments and can also make your own creative videos and share them with the general public.
Calenders and Todo list
According to my opinion if you create a calendar or a to-do list then it will help you know more about the mechanics of the MERN stack and would help you gain some experience with it. You can make modern designs and can add icons using your own creativity. You can access, modify and update the data using Mongo DBMS.
Creating a news website
Another important use case of the MERN stack is that you can create your own news website using APIs where you can show thousands and hundreds of articles according to different categories and can also add a search bar for users to search the use for their niches like Gaming, coding, and programming, etc. I would recommend that you can use APIs from Newsapi.org or Rapid APIs.
Is MERN Stack a full-stack solution?
Yes, MERN Stack is definitely a full-stack solution it follows the three-tier architecture which we discussed earlier. It works on all front (React JS), backend (Express JS and Node JS), and at last Database (Mongo DB). So, the simple answer is that, yes MERN Stack is a full-stack solution and the best one for me.
Conclusion (Why is it good for you).
At last, I would like to conclude that the MERN stack is a very modern and good technology that is beloved by JavaScript developers and especially web developers and if you want to learn a full-stack technology then I would recommend learning MERN only because it will help you know more about JSON, backend and front end technologies and later on.
It will also help you in your career to work as a MERN developer or any type of component developer from MERN like React JS developer, etc on big companies like Facebook, etc because these languages or technologies have a big demand in the market.
So, these are some reasons which show why is it good for you? and why you should learn MERN don't forget to share our posts with your developer friends. So, that they can also get to know about MERN.
0 Comments