A NoSQL database storing data as flexible, JSON-like documents.

A reusable piece of UI logic.

State stores dynamic data in a component.

Use controlled components and state to manage input.

Using fetch() or libraries like Axios to call RESTful APIs.

JSX allows writing HTML-like syntax in JavaScript code.

Hook for performing side effects in function components.

A JavaScript library for building user interfaces, especially single-page applications.

A library for routing in React applications.

Uses app.get/post/put/delete for defining endpoints.

An ODM for MongoDB and Node.js to manage schemas and data.

MERN stands for MongoDB, Express.js, React.js, and Node.js — full-stack JavaScript framework.

A lightweight Node.js web framework for building APIs and backend logic.

MongoDB is schema-less and stores data in collections, not tables.

API that follows REST principles for CRUD operations.

Functions that execute during request-response lifecycle.

Single-language development with JavaScript across frontend and backend improves efficiency.

Use the MongoDB or Mongoose Node.js driver.

Use JWT, HTTPS, input validation, and environment variables.

JavaScript runtime for building fast, scalable backend applications.

Use platforms like Heroku, Vercel, or render for full-stack deployment.

Cross-Origin Resource Sharing — allows or restricts resource access across origins.

Manages project dependencies and scripts for Node.js and React apps.

A hook to add state to functional components.

A state management library often used with React.