React Events MCQ Event Handling Practice Questions

Direction: Choose the correct option

How do you handle events in React?

A. Using all lowercase event names

B. Using inline HTML event attributes

C. Using addEventListener in render

D. Using camelCase event handlers like onClick

Direction: Choose the correct option

What is the difference between React event handling and DOM event handling?

A. React events are not cancellable

B. React events are named in lowercase

C. There is no difference

D. React events are synthetic, cross-browser wrappers

Direction: Choose the correct option

In a class component, how do you ensure 'this' is bound in an event handler?

A. Use .bind(this) in constructor or arrow function

B. No need

C. Use event.target

D. Use global this

Direction: Choose the correct option

How do you pass an extra argument to an event handler?

A. Both A and B

B. onClick={handler.bind(this, arg)}

C. onClick={() => handler(arg)}

D. onClick={handler(arg)}

Direction: Choose the correct option

What does the event object passed to React event handlers represent?

A. The native DOM event

B. A SyntheticEvent that wraps the native event

C. It's undefined

D. A custom React event

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