Modern JavaScript from the Beginning - Second Edition - Comments and Shortcuts

This video tutorial covers the importance of commenting in code, particularly in JavaScript, and provides a comprehensive guide on using both single-line and multi-line comments. It also introduces various keyboard shortcuts in VS Code to enhance coding efficiency, including navigation, selection, and editing techniques. The tutorial emphasizes the practical application of these shortcuts to improve workflow and encourages gradual learning of these tools.

Why are comments crucial when working on a team project?

• They make the code run faster.

• They are used to compile the code.

• They are necessary for code execution.

• They help in explaining the code to other developers.

What is the correct way to write a single-line comment in JavaScript?

• # This is a comment

• // This is a comment

• /* This is a comment */

How can you toggle a comment on a line of code in VS Code?

• Press Command or Control + /

• Press Command or Control + C

• Press Shift + C

• Press Alt + C

Which shortcut allows you to move a line of code up or down in VS Code?

• Alt or Option + Arrow keys

• Shift + Arrow keys

• Command or Control + Arrow keys

• Command or Control + Shift + Arrow keys

What is the shortcut to duplicate a line of code in VS Code?

• Command + D

• Shift + Alt + Down Arrow

• Control + D

• Alt + Shift + Up Arrow

How can you select all instances of a word in VS Code?

• Command or Control + A

• Command or Control + Shift + F

• Command or Control + Shift + L

• Command or Control + F

Which shortcut is used to toggle the terminal in VS Code?

• Command or Control + T

• Command or Control + Shift + T

• Command or Control + ~

• Command or Control + B