Introduction to Modern React

React is a popular JavaScript library used to build modern user interfaces.

In 2026, React is still one of the most demanded skills for frontend developers. Companies use React to build fast, interactive, and scalable web applications.

React works using components. A component is a small reusable piece of the user interface. Instead of writing long HTML files, React allows developers to break the UI into smaller parts, making the code easy to understand and maintain.


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