The Full Stack Web Development - Console & Debugging

The video tutorial covers the use of the console in web development, including its features as a logger and command line interface. It demonstrates setting up a basic HTML document and linking a JavaScript file. The tutorial explains how to run JavaScript commands in the console, manipulate the DOM, and use the console for error logging and debugging. It also covers the use of breakpoints to pause and resume script execution, and how to handle minified scripts using the pretty print feature.

What is the primary function of the console in JavaScript?

• To create CSS styles

• To edit HTML files

• To log messages and execute JavaScript commands

• To manage server databases

Which command is used to clear the console?

• console.clear()

• console.reset()

• console.remove()

• console.delete()

Where should the script.js file be included in an HTML document?

• In the head section

• In a separate HTML file

• At the bottom of the body section

• At the top of the body section

What does the querySelector method do?

• Selects elements by their tag name

• Selects the first element that matches a specified CSS selector

• Selects elements by their attribute

• Selects all elements with a specific class

How can you access an element with the ID 'title' using a shortcut in the console?

• document.getElementById('title')

• $('title')

• $('#title')

• document.querySelector('#title')

What is the purpose of the console.error() method?

• To clear all error messages

• To log messages in green

• To log messages in blue

• To log error messages in red

What happens when you click on an error message in the console?

• It opens a new tab

• It deletes the error message

• It highlights the error in the HTML

• It takes you to the line of code causing the error

What is the function of breakpoints in debugging?

• To delete parts of the script

• To stop the script execution at a specific point

• To automatically fix errors in the script

• To highlight errors in the script

How does the pretty print feature help in debugging?

• It minifies the code

• It automatically corrects code errors

• It highlights syntax errors

• It formats the code for better readability

What is the advantage of using Chrome DevTools for debugging?

• It provides a comprehensive set of tools for JavaScript debugging

• It is not suitable for JavaScript debugging

• It is only available for HTML debugging

• It requires third-party tools