Q
How can comments be used to document disabled code segments effectively in JavaScript?

Answer & Solution

Answer: Option B
Solution:
Related Questions on Average

In JavaScript, what is the syntax for a single-line comment?

A). // This is a comment

B). /* This is a comment */

C). # This is a comment

D).

How can developers maintain code readability when using comments to prevent execution in JavaScript?

A). By using cryptic comments that only developers can understand

B). By adding extensive comments that explain every line of code

C). By using single-line comments to disable code segments and avoid multi-line comments

D). By removing all comments from the code

Which of the following is a valid way to prevent the execution of code in JavaScript temporarily?

A). By adding a DEBUG keyword at the end of each line of code

B). By wrapping the code block with {}

C). By using single-line comments // to comment out the code

D). By adding the execute: false attribute to the code block

How can comments be used to prevent execution of code in programming languages?

A). By surrounding the code with curly braces {}

B). By prefixing the code with --

C). By enclosing the code in single quotes ''

D). By wrapping the code in comments /* */

Which statement about using comments to prevent execution is accurate?

A). Comments are executed as code

B). Comments are ignored by the interpreter

C). Comments can contain executable code

D). Comments increase code performance

What should be avoided when using comments to prevent code execution?

A). Using comments to provide explanations about the code

B). Commenting out entire sections of code without a clear reason

C). Using comments to add debugging information

D). Using comments within functions

How can comments be used effectively to prevent execution without altering the code structure in JavaScript?

A). By using comments to add complexity to the code structure

B). By adding comments at the beginning and end of the code block

C). By wrapping the code block in multi-line comments and leaving a clear explanation

D). By replacing the code with a placeholder string

What happens if you mix single-line and multi-line comments incorrectly in JavaScript?

A). It will cause the code to execute twice

B). It will result in a syntax error

C). It will create a new comment type called hybrid comments

D). It will disable all comments in the code block

How can a developer disable a block of code using multi-line comments in JavaScript?

A). By adding a semicolon ; at the end of each line of code

B). By using the disable keyword

C). By wrapping the code block in /* */

D). By using the disableCode function

What is the primary advantage of using comments to prevent execution compared to deleting code temporarily?

A). Comments allow developers to execute the code by toggling a flag

B). Comments provide a way to document why the code is disabled and can be re-enabled easily

C). Comments make the code more complex and difficult to understand

D). Comments improve code execution speed