JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Events - I / 053-1

The video tutorial introduces the concept of events in web development, focusing on how user interactions can trigger changes in a webpage. It explains the process of selecting DOM elements, attaching event listeners, and defining callback functions to handle events like clicks. The tutorial provides practical examples, such as updating CSS or removing elements, and sets the stage for building a to-do list app in the next lecture.

What is the primary purpose of using events in web development?

• To allow user interactions to trigger changes

• To reduce the amount of JavaScript code

• To make the website load faster

• To improve the website's SEO

Which method is used to select an element in the DOM?

• document.querySelector

• document.getElementById

• document.appendChild

• document.createElement

What is the role of a callback function in an event listener?

• To style the element

• To validate form inputs

• To load external scripts

• To handle the event when it occurs

What happens when a click event is triggered on a button?

• The button changes color

• A function is called

• The button disappears

• The page reloads

Which of the following is a possible action when a button is clicked?

• Close the browser

• Log a message to the console

• Open a new tab

• Change the button's text

What can be achieved by using event listeners in web applications?

• Creating dynamic and interactive user interfaces

• Enhancing image quality

• Reducing server load

• Improving database performance

What is the end goal of the tutorial's example project?

• To create a weather app

• To design a photo gallery

• To build a to-do list app

• To develop a chat application