![]() It offers the Mongo shell that provides a JS interface for deleting, querying, and updating the records.ĮxpressJS is a NodeJS framework that simplifies writing the backend code. MongoDB enables users to create databases, schemas, and tables. MongoDB is a NoSQL DBMS where data is stored in the form of documents having key-value pairs similar to JSON objects. Let’s learn more about these MERN Stack components: It is a JS runtime environment, i.e., it enables running JavaScript code outside the browser. The final component of the MERN stack is NodeJS.The third component is ReactJS, a JavaScript library for developing UIs based on UI components.It is a backend web application framework for NodeJS. The second MERN stack component is ExpressJS.The first component is MongoDB, which is a NoSQL database management system.There are four components of the MERN stack. Npm install module_name -save MERN Stack Components Next, you need to open the folder on the CMD (or terminal) and enter the following command to initialize a package.json file:Ī standard JSON package looks as shown below: It is a contraction for four different technologies as mentioned below:Ĭonsidering you’ve downloaded and configured all the four aforementioned technologies, you need to know how to create a new project folder to get started with the MERN stack. MERN Stack is a compilation of four different technologies that work together to develop dynamic web apps and websites. Thus, if one knows JavaScript (and JSON), the backend, frontend, and database can be operated easily. This is because the four technologies that make up the technology stack are all JS-based. The main purpose of using MERN stack is to develop apps using JavaScript only. MERN stack is a collection of technologies that enables faster application development.
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