React is an open-source JavaScript library used for building user interfaces, particularly for Single Page Applications (SPAs). It was developed by Meta (Facebook) and is currently one of the most popular tools in modern web development. What is React? At its core, React allows you to build a website by breaking it into small, independent pieces called components. These components can be things like a Navbar, Button, or Profile Card. Instead of refreshing the entire page when a user interacts with it, React updates only the specific part that has changed. This makes applications faster and improves user experience. Core Concepts of React JSX (JavaScript XML) React allows you to write HTML-like code directly inside JavaScript. This is called JSX, and it makes the code easier to read and write. What is TypeScript (TS)? TypeScript is simply JavaScript with added type support. While JavaScript is loosely typed, TypeScript is strongly typed. TS files (.ts) are used for logic such as functio...