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Web Development
React is a JavaScript library for building user interfaces from reusable components. It is maintained by Meta and is one of the most used front-end tools.
Interfaces are built from components, such as a button, a card, or a menu, that manage their own state and combine into full pages.
React handles what appears on screen. Frameworks such as Next.js add routing, server rendering, and performance features around it.
Example
A course card component is written once and reused for every course, with the title and image passed in as data.
Why it matters
React skills are among the most requested in web development jobs, and component thinking makes large sites easier to keep consistent.
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Web Development
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