Q
How do you comment out a block of code using multi-line comments in JavaScript?

Answer & Solution

Answer: Option D
Solution:
Multi-line comments can be used to comment out entire blocks of code by starting the comment with /* and ending with */.
Related Questions on Average

How can multi-line comments aid in collaborative development?

A). By hiding code

B). By providing detailed explanations

C). By increasing code performance

D). By reducing code size

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

A). /* This is a comment */

B). // This is a comment

C).

D). # This is a comment

What is the primary use of multi-line comments during development?

A). To execute multiple lines of code

B). To temporarily disable code

C). To increase code performance

D). To shorten the code

What is the primary purpose of multi-line comments?

A). To execute code

B). To write long explanations

C). To increase code speed

D). To replace code

Which of the following is NOT a valid use of multi-line comments in JavaScript?

A). Writing executable code

B). Adding documentation

C). Temporarily disabling code

D). Adding notes

What can multi-line comments help improve in JavaScript code?

A). Code execution speed

B). Code documentation

C). Code readability

D). Code performance

Can multi-line comments be nested within each other in JavaScript?

A). Yes

B). No

C). Only in specific cases

D). Only in global scope

When should multi-line comments be avoided in JavaScript?

A). When they add clarity to the code

B). When they restate obvious code

C). When they are relevant to the code

D). When they are short and concise

What happens if you do not close a multi-line comment in JavaScript?

A). The code will run normally

B). It will cause a syntax error

C). The comment will extend indefinitely

D). It will become a single-line comment

What should be ensured when writing multi-line comments?

A). They are as short as possible

B). They are relevant and up-to-date

C). They contain executable code

D). They are placed at the end of the file