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

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

A). Using // at the beginning of each line

B). Using /* at the start and */ at the end

C). Enclosing the code in {}

D). Using

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

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

A).

B). /* Comment */

C). // Comment

D). # Comment

Which of the following is ignored by the JavaScript interpreter?

A). Variable declarations

B). Function definitions

C). Comments

D). Keywords

How can comments help in debugging JavaScript code?

A). By executing commented code

B). By providing explanations

C). By ignoring parts of the code

D). By highlighting errors

What happens if you include a comment within a string in JavaScript?

A). The comment will be executed as code

B). The comment will be ignored by the interpreter

C). The comment will be treated as part of the string

D). It will cause a syntax error

Which of the following is true about multi-line comments?

A). They can contain other multi-line comments

B). They cannot be used to comment out code

C). They can span multiple lines

D). They must be at the beginning of the code

What is the purpose of comments in code?

A). To add executable code

B). To increase execution speed

C). To explain and document the code

D). To replace code

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

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