Learn JavaScript from Scratch JavaScript for Everyone - Your Project
Interactive Video
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Information Technology (IT), Architecture
•
University
•
Practice Problem
•
Hard
Wayground Content
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of using event listeners in JavaScript?
To make the webpage load faster
To handle user interactions and make the page interactive
To style the webpage with CSS
To store data in the browser
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which API is used to fetch data from external sources in JavaScript?
LocalStorage API
Canvas API
DOM API
Fetch API
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using 'then' in a Fetch API call?
To log data to the console
To chain promises and handle the response
To handle errors in the request
To style the response data
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you ensure that a random number generated is within a valid range for character IDs?
By hardcoding the number
By using a loop to check each number
By using Math.random() and multiplying by the maximum number of characters
By using a fixed number
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of template literals in constructing URLs for API requests?
To add CSS styles to the URL
To concatenate strings and variables easily
To encrypt the URL
To validate the URL
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of adding an event listener to a button in this project?
To change the button's color
To fetch new character data when clicked
To disable the button
To log a message to the console
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to use 'preventDefault' in an event listener for a button?
To prevent the button from being clicked
To stop the form from submitting and refreshing the page
To change the button's text
To log the event to the console
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