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

Answer & Solution

Answer: Option Using /* at the start and */ at the end
Solution:
Multi-line comments can be used to comment out a block of code by placing /* at the beginning and */ at the end.
Related Questions on Average

Which of the following comments will result in an error if placed inside a JavaScript function?

A). // This is a comment

B). /* This is a comment */

C).

D). # This is a comment

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

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

A). /* This is a comment */

B). // This is a comment

C).

D). # This is a comment

Why should comments be clear and concise?

A). To avoid confusion

B). To ensure they are ignored by the interpreter

C). To make them look professional

D). To make them longer

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

A). /* Comment */

B). // Comment

C).

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

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

Which of the following is ignored by the JavaScript interpreter?

A). Variable declarations

B). Function definitions

C). Comments

D). Keywords

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

A).

B). /* Comment */

C). // Comment

D). # Comment

How do you comment out the rest of a line after a statement in JavaScript?

A). /* rest of line */

B). # rest of line

C). // rest of line

D).