JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Reload / 215

The video tutorial covers the use of the onclick event in JavaScript, explaining how to add event listeners to elements and use them to trigger functions. It demonstrates how to refresh a page using the reload function and provides a practical example of a quiz application. The tutorial also explains how to provide feedback on quiz answers by changing the background color based on correctness. It concludes with a project overview and encourages viewers to create their own quizzes with genuine questions.

What is the primary purpose of using the 'onclick' event in JavaScript?

• To change the style of an element

• To add an event listener to an element

• To remove an element from the DOM

• To create a new HTML element

How can you refresh a page using JavaScript when a button is clicked?

• By using 'document.write()'

• By using the 'alert' function

• By using 'document.location.reload(true)'

• By using 'console.log()'

What CSS class should be added to a question if the answer is correct?

• correct

• incorrect

• wrong

• right

Which method is used to select all elements of a certain type in the DOM?

• getElementsByClassName

• querySelectorAll

• querySelector

• getElementById

What is the output of 'console.log(document.querySelectorAll('.question'))' if there are five questions?

• A single question element

• An error message

• A NodeList of five question elements

• An array of five question elements

What is a key takeaway from the project summary?

• How to use CSS for styling

• The use of querySelectorAll for selecting elements

• The importance of using loops in JavaScript

• How to create a new HTML page

What is suggested as a homework task at the end of the project?

• Use lorem ipsum text

• Add more questions to the quiz

• Create a new HTML page

• Learn a new programming language