Single Line Comments Mockest | JavaScript

11.

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

Answer & Solution Discuss in Board

12.

What is the syntax for writing an inline comment in JavaScript?

A). # This is an inline comment B). // This is an inline comment C). /* This is an inline comment */ D).

Answer & Solution Discuss in Board

13.

How do single-line comments improve code readability?

A). By adding extra executable code B). By explaining complex logic C). By increasing code length D). By making code run faster

Answer & Solution Discuss in Board

14.

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

Answer & Solution Discuss in Board

15.

Which of the following single-line comments would be used to explain a variable declaration?

A). // Variable to store user age B). /* Variable to store user age */ C). D). # Variable to store user age

Answer & Solution Discuss in Board

16.

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

Answer & Solution Discuss in Board

17.

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

Answer & Solution Discuss in Board

18.

Which is the correct way to 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).

Answer & Solution Discuss in Board

19.

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

Answer & Solution Discuss in Board

20.

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

A). Improved code readability B). Easier debugging C). Faster code execution D). Better documentation

Answer & Solution Discuss in Board

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