How does React handle events differently from HTML?

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React handles events differently from plain HTML in several key ways:

1. Synthetic Events:
   React uses a SyntheticEvent system, which is a cross-browser wrapper around the native browser event. This ensures consistent behavior across different browsers, abstracting away inconsistencies you might face in raw HTML/JS event handling.

2. CamelCase Naming:
   Event handlers in React are named using camelCase (e.g., onClick, onChange), unlike HTML, which uses lowercase event attributes (onclick, onchange).

3. Passing Functions, Not Strings:
   In React, event handlers are passed as functions (e.g., onClick={handleClick}), not as strings of JavaScript code as in HTML (e.g., <button onclick="handleClick()">). This promotes better readability, maintainability, and performance.

4. Event Binding:
   In React components, event handlers are usually bound to the component instance (especially in class components) to preserve the correct this context. In HTML, this typically refers to the element itself.

5. Event Delegation:
   React uses a single event listener at the root of the document (event delegation), which improves performance by minimizing the number of event listeners. HTML attaches event handlers directly to each element.

6. Prevent Default Behavior:
   In React’s SyntheticEvent, you call event.preventDefault() to stop default actions, similar to HTML/JS, but React also handles event pooling, so event objects are reused for performance — you need to call event.persist() if you want to use the event asynchronously.

In summary, React’s event handling abstracts and optimizes the traditional HTML event model with a consistent, efficient, and declarative approach suited for modern web apps.

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