What will be the output of console.log("Hello World!"); // This is a comment?

How can you comment out a block of code in JavaScript?

A). Using // at the beginning of each line

B). Using /* at the start and */ at the end

C). Enclosing the code in {}

D). Using

Which of the following is ignored by the JavaScript interpreter?

A). Variable declarations

B). Function definitions

C). Comments

D). Keywords

What is the purpose of comments in code?

A). To add executable code

B). To increase execution speed

C). To explain and document the code

D). To replace code

Can you use comments to include documentation for functions and variables in JavaScript?

A). Yes

B). No

C). Only for functions

D). Only for variables

How can you temporarily disable a piece of code without deleting it?

A). By commenting it out using /* */ or //

B). By placing it in a string

C). By removing it from the file

D). By placing it in a function

Why should comments be kept up-to-date with the code?

A). To ensure they do not cause syntax errors

B). To prevent the code from running

C). To make the code easier to understand for others

D). To increase code execution speed

How do you write a single-line comment in JavaScript?

A). /* Comment */

B). // Comment

C).

D). # Comment

How do you write a comment that explains the purpose of a function in JavaScript?

A). Inside the function body

B). Before the function definition

C). After the function definition

D). It is not necessary to comment functions

How do you write a multi-line comment in JavaScript?

A).

B). /* Comment */

C). // Comment

D). # Comment

Which of the following is NOT a benefit of using comments in JavaScript code?

A). Improved code readability

B). Easier debugging

C). Faster code execution

D). Better documentation