The Modern JavaScript Bootcamp (2019) - Handling User Interaction

This video tutorial covers setting up live server instances for different apps, creating interactive elements like buttons in HTML, and handling user interactions using JavaScript event handlers and listeners. It explains how to use event arguments to access DOM elements and modify them. The tutorial concludes with a practical challenge to apply these concepts by adding a button and an event listener to a to-do app.

What is the purpose of running two instances of live server in the tutorial?

• To test the same application on different ports

• To avoid switching between applications

• To run the application on different devices

• To increase the speed of the application

Which HTML tag is used to create a button?

What is an event listener in JavaScript?

• A way to store data in the browser

• A function that runs when a specific event occurs

• A method to style HTML elements

• A tool to debug JavaScript code

Which method is used to attach an event listener to an element?

• setEventListener()

• bindEvent()

• addEventListener()

• attachEvent()

What is the first argument passed to the addEventListener method?

• The event type

• The event object

• The callback function

• The HTML element

What does the event object represent in an event handler?

• The HTML document

• The event type

• The element that triggered the event

• The browser window

Which property of the event object gives access to the DOM element that triggered the event?

• event.element

• event.listener

• event.target

• event.type

What is the purpose of the practical challenge in the tutorial?

• To debug JavaScript code

• To add a button and attach a click event listener

• To style a webpage using CSS

• To create a new HTML page

What message is printed to the console when the button in the challenge is clicked?

• Task completed

• Adding a new to do

• Event triggered

• Button clicked

What is the main focus of the tutorial's final section?

• Debugging JavaScript code

• Exploring advanced JavaScript features

• Creating a new web application

• Handling user interaction with event listeners

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