Which of the following is true about single-line comments in JavaScript?

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

A). # This is a comment

B). // This is a comment

C). /* This is a comment */

D).

Which of the following will be ignored by the JavaScript interpreter?

A). Variable declarations

B). Function definitions

C). Single-line comments

D). Keywords

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

A). By commenting it out using //

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 clear and concise?

A). To avoid confusion

B). To increase code execution speed

C). To ensure they are ignored by the interpreter

D). To make them look professional

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

A). Hello World!

B). Syntax Error

C). This is a comment

D). Undefined

Which of the following is a valid single-line comment in JavaScript?

A). // This is a comment

B). /* This is a comment */

C).

D). # This is a comment

What should you avoid when writing single-line comments?

A). Writing clear and concise comments

B). Writing too many comments

C). Writing comments that restate the code

D). Writing comments at the end of the code

How can single-line comments help during debugging?

A). By highlighting errors

B). By temporarily disabling code

C). By changing code execution

D). By improving performance

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

Can single-line comments be used to add TODO notes in code?

A). Yes

B). No

C). Only in certain cases

D). Only in multi-line comments