Instructions

  • 1. Your final score will reflect your grasp of the concepts—approach each question with precision.
  • 2. Thoroughly review each solution before proceeding to ensure full understanding.
  • 3. Final results will be available after submission to provide insights into areas for further improvement.
  • 4. Maintain academic integrity—plagiarism undermines learning and professional growth.
  • 5. Once submitted, responses are final, so ensure you’re confident in your answers.
  • 6. These challenges are designed to test practical knowledge; apply your skills as you would in real-world scenarios.

All Problems

Question

Action

Which method is used to attach an event listener to an element?

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Which event occurs when an element is clicked?

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What is the purpose of the removeEventListener() method?

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How do you specify the type of event in addEventListener()?

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Which of the following will prevent the default action of an event?

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What does event.target refer to in an event handler?

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If you want to listen for a mouseover event, which of the following would you use?

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Can multiple event listeners of the same type be added to the same element?

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What will happen if you call addEventListener on the same event multiple times?

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Which option correctly binds the event listener to a button with the ID submitBtn?

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Which method is used to attach an event listener to an element?

addListener()
attachEvent()
addEventListener()
onEvent()

Which event occurs when an element is clicked?

onhover
onactive
click
keydown

What is the purpose of the removeEventListener() method?

To remove an event from the DOM
To prevent an event from being triggered
To detach an event listener from an element
To pause an event

How do you specify the type of event in addEventListener()?

As the first argument
As the second argument
As the third argument
As a property of the element

Which of the following will prevent the default action of an event?

event.stopPropagation()
event.preventDefault()
event.cancelBubble()
event.stopImmediatePropagation()

What does event.target refer to in an event handler?

The element that the event listener is attached to
The element that initiated the event
The parent element of the event
The last element clicked

If you want to listen for a mouseover event, which of the following would you use?

element.addEventListener('click', function)
element.addEventListener('mouseover', function)
element.onmouseover = function
Both b and c

Can multiple event listeners of the same type be added to the same element?

Yes, always
No, it will overwrite the previous one
Yes, but only if they are anonymous functions
No, only one listener is allowed

What will happen if you call addEventListener on the same event multiple times?

It will trigger the event multiple times
It will cause an error
It will only trigger the first event
It will ignore the additional calls

Which option correctly binds the event listener to a button with the ID submitBtn?

document.submitBtn.addEventListener('click', function() {});
document.getElementById('submitBtn').addEventListener('click', function() {});
addEventListener('click', 'submitBtn');
document.querySelector('#submitBtn').addEventListener('click', function() {});