HTML CSS and JavaScript for Beginners - A Web Design Course - Change Classes DOM

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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
What is the initial step in updating styles using JavaScript?
Directly modifying the HTML file
Using a query selector to select elements
Changing the CSS file
Using a database to store styles
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which JavaScript method is used to apply a class to an element?
applyClass()
className
addClass()
setClass()
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the class list in JavaScript?
To store all HTML elements
To delete HTML elements
To manage multiple classes for an element
To create new CSS styles
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you remove a class from an element using JavaScript?
element.removeClass('className')
element.className = ''
element.classList.remove('className')
element.deleteClass('className')
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you toggle a class using JavaScript?
The class is renamed
The class is duplicated
The class is added if absent and removed if present
The class is permanently removed
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of setting a class name directly on an element?
It appends the class to existing classes
It replaces any existing classes
It creates a new HTML element
It changes the element's ID
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a benefit of using JavaScript for class manipulation?
It allows for dynamic style changes
It makes the website slower
It requires less code than CSS
It is easier to debug than CSS
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