React JS Masterclass - Go From Zero To Job Ready - Dark Mode / 107

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Information Technology (IT), Architecture
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University
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of adding a class to the HTML root tag in the context of dark mode?
To change the font style
To apply a global dark mode theme
To increase the page load speed
To enhance the security of the page
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which event is used to trigger the dark mode toggle?
onchange
onclick
onload
onhover
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the useEffect hook in managing dark mode?
To handle form submissions
To update the HTML class based on state changes
To fetch data from an API
To manage user authentication
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the default state value for dark mode when the page first loads?
Null
Undefined
False
True
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is local storage used in the dark mode implementation?
To store user passwords
To save the dark mode state across sessions
To store user preferences for font size
To cache images for faster loading
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the application determine the initial dark mode state on subsequent visits?
By asking the user
By reading from local storage
By querying a database
By checking a cookie
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the dark mode state when the page is refreshed without local storage?
It throws an error
It prompts the user to choose
It resets to the default state
It remains unchanged
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