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
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
What is the purpose of single-line comments in code?
A). To add executable code
B). To increase execution speed
C). To explain and document the code
D). To replace code
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
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
Which of the following is true about single-line comments in JavaScript?
A). They can contain other comments
B). They cannot be used within functions
C). They span multiple lines
D). They end at the end of the line
Why should comments be clear and concise?
A). To avoid confusion
B). To increase code execution speed
C). To ensure they are ignored by the interpreter
D). To make them look professional
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).
How do you add a note to explain a line of code in JavaScript?
A). By adding a comment using //
B). By using #
C). By using /* ... */
D). By using
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