React Passing Arguments to Events MCQ Event Arguments Practice Questions

Direction: Choose the correct option

How can you pass an argument to an event handler in React?

A. <button onClick={this.handleClick(id)}>

B. <button onClick={this.handleClick.bind(this, id)}>

C. <button onClick={() => this.handleClick(id)}>

D. Both B and C

Direction: Choose the correct option

In an arrow function event handler like onClick={() => handleClick(id)}, what is the event object?

A. It is the first argument

B. It is passed automatically as the second argument

C. It is lost

D. It must be explicitly passed

Direction: Choose the correct option

Using .bind, how do you access the event?

A. The event is the first argument

B. You cannot access the event

C. Use event.bind

D. The event is automatically passed after the bound arguments

Direction: Choose the correct option

What is the output if you have: and handleClick(arg, e) { console.log(arg, e); }?

A. 'a' and undefined

B. Error

C. undefined and event

D. 'a' and the event object

Direction: Choose the correct option

Which approach avoids creating a new function on every render when passing arguments?

B. Using a data-attribute and reading from event

C. Arrow function in render

D. bind in render

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