The Mern stack is a JavaScript stack used to easily and quickly deploy fully functional web applications. The Mern stack includes 4 technologies: MongoDB, Express, React and Node.js. It is designed to simplify and simplify the development process. Each of these 4 powerful technologies provides developers with a comprehensive work environment, and each of these technologies plays a large role in the development of web applications. Components of Mern Stack · MongoDB: a cross-platform document database MongoDB is a NoSQL document-oriented database (non-relational). While traditional relational databases have a special schema based on columns and tables, MongoDB has no schema. Data is stored in flexible documents with JSON (JavaScript Object Notation) query language. The content, size and number of fields in documents can vary from one to another. This means that the data structure must change over time. MongoDB is known for its flexibility and ease of scalability. ...