How are event listener names written in JSX?

Master ReactJS with our comprehensive test. Practice with multiple-choice questions and detailed explanations. Build your skills for the exam with our engaging format and expert tips!

Multiple Choice

How are event listener names written in JSX?

Explanation:
Event listener names in JSX use camelCase, such as onClick or onChange. This aligns with JavaScript property naming, making it clear these are props that attach handlers rather than plain HTML attributes. When you write onClick={handleClick}, you’re wiring a function to run in response to a click through React’s event system. Using snake_case, kebab-case, or UPPERCASE wouldn’t be recognized as valid React event props, so the handler wouldn’t be attached as expected.

Event listener names in JSX use camelCase, such as onClick or onChange. This aligns with JavaScript property naming, making it clear these are props that attach handlers rather than plain HTML attributes. When you write onClick={handleClick}, you’re wiring a function to run in response to a click through React’s event system. Using snake_case, kebab-case, or UPPERCASE wouldn’t be recognized as valid React event props, so the handler wouldn’t be attached as expected.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy