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

What is a NodeList?

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How do you convert a NodeList into an array?

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What is an HTMLCollection?

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Which of the following methods returns a NodeList?

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Which collection is live and updates automatically when the DOM changes?

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How can you access elements in a NodeList?

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What will nodeList.length return?

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Can you directly manipulate a NodeList?

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Which of the following will return an HTMLCollection?

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How do you iterate through a NodeList?

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What is a NodeList?

A collection of HTML elements
A collection of all nodes in the DOM
A collection of all elements in the document
A collection of CSS rules

How do you convert a NodeList into an array?

Array.from(nodeList)
Array.convert(nodeList)
nodeList.toArray()
Array.create(nodeList)

What is an HTMLCollection?

A collection of elements in the document
A collection of all nodes in the DOM
A static collection of nodes
An array of elements

Which of the following methods returns a NodeList?

document.querySelectorAll()
document.getElementsByClassName()
document.getElementsByTagName()
Both a and c

Which collection is live and updates automatically when the DOM changes?

NodeList
HTMLCollection
Both are live
Neither is live

How can you access elements in a NodeList?

nodeList[index]
nodeList.item(index)
Both a and b
nodeList[index].element

What will nodeList.length return?

The number of nodes in the NodeList
The number of elements in the document
The number of children of the first node
None of the above

Can you directly manipulate a NodeList?

Yes, NodeLists are arrays
No, they are read-only collections
Yes, but only their length
No, you can only manipulate the first item

Which of the following will return an HTMLCollection?

document.getElementsByClassName('className')
document.querySelectorAll('.className')
document.getElementsByTagName('div')
Both a and c

How do you iterate through a NodeList?

Using forEach()
Using a for loop
Both a and b
You cannot iterate through a NodeList