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React

React is a JavaScript library for building user interfaces from reusable components.

What Is React​

React lets developers describe UI as components that render from state and props.

It is commonly used for single-page apps, dashboards, documentation sites, ecommerce, and full-stack applications.

How To Use React​

Create components, compose them together, and update UI by changing state.

Basic Example​

function Greeting({name}: {name: string}) {
  return <h1>Hello, {name}</h1>;
}

Common Concepts​

  • Components split UI into reusable pieces.
  • Props pass data into components.
  • State tracks values that change over time.
  • Hooks connect components to state and side effects.

What To Learn Next​

Learn JSX, hooks, component composition, forms, routing, testing, and data fetching.