Modern Web Design with HTML5, CSS3, and JavaScript - JavaScript Code Challenge – Output Action Challenge

The video tutorial covers using Chrome's developer tools to view and manipulate source code. It explains how to create and run JavaScript code snippets on web pages, highlighting the process of selecting elements by ID and handling errors. The tutorial also demonstrates testing code snippets on different websites and troubleshooting common issues.

What is the primary function of the console in Chrome's developer tools?

• To edit HTML and CSS directly

• To view and run JavaScript code

• To download web pages

• To manage browser extensions

What can you do with the sources tab in developer tools?

• Edit images on a webpage

• View and copy JavaScript and HTML source code

• Change the browser's default language

• Access the browser's history

How can you save a code snippet in developer tools?

• By dragging and dropping the code into a folder

• By emailing the code to yourself

• By creating a new snippet and pasting the code

• By using the 'Save As' option in the file menu

What happens if a JavaScript code snippet tries to access a missing element by ID?

• The browser crashes

• The code snippet is ignored

• An error is thrown

• The page reloads automatically

What is the effect of using 'document.write' in a JavaScript snippet?

• It appends content to the existing HTML

• It overwrites the entire HTML document

• It saves the document to the server

• It creates a new HTML file

When testing code snippets on a webpage, what should you ensure about the elements?

• They are in the footer section

• They have unique class names

• They have an ID attribute

• They are visible on the screen

What is a practical use of code snippets on websites?

• To change the website's hosting provider

• To change the website's domain

• To update elements dynamically by ID

• To delete the website's content