Modern JavaScript from the Beginning - Second Edition - DOM Selectors - Multiple Elements

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Information Technology (IT), Architecture
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University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is most commonly used to select multiple elements in modern JavaScript?
getElementsByTagName
getElementById
querySelectorAll
getElementsByClassName
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a NodeList in JavaScript?
A method to select elements by class name
A type of array
An array-like structure that can use high order array methods
A collection of HTML elements
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you change the style of all elements in a NodeList?
Using a forEach loop
Directly setting the style property on the NodeList
Using a while loop
By converting it to an HTMLCollection
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key difference between NodeList and HTMLCollection?
NodeList is not iterable
HTMLCollection can use high order array methods
NodeList can use high order array methods
HTMLCollection is a type of NodeList
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method would you use to select elements by their class name?
querySelectorAll
getElementsByClassName
getElementsByTagName
querySelector
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you convert an HTMLCollection to an array?
Using a for loop
Using Array.from
Using Array.prototype.slice
Using JSON.stringify
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if you try to use forEach directly on an HTMLCollection?
It will work as expected
It will return undefined
It will throw an error
It will convert to a NodeList
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