Q
Which character is used to indicate a comment in JavaScript?

Answer & Solution

Answer: Option a
Solution:
// is used to indicate single-line comments in JavaScript.
Related Questions on Average

Which character is used to indicate a comment in JavaScript?

A). //

B). --

C). **

D). %%

In JavaScript, what is the purpose of maintaining consistent line lengths?

A). It reduces code performance

B). It improves code readability

C). It increases code execution time

D). It limits code functionality

Which tool can help automate code formatting, including line breaks, in JavaScript?

A). ESLint

B). Webpack

C). Babel

D). jQuery

Which character is used to concatenate strings in JavaScript?

A). Comma (,)

B). Plus (+)

C). Equals (=)

D). Colon (:)

What happens if a line break is placed inside a string without appropriate handling in JavaScript?

A). It throws a syntax error

B). It causes a runtime exception

C). It ignores the line break

D). It creates a multiline string

When breaking a long line in JavaScript, which of the following is a recommended practice?

A). Break lines randomly for variety

B). Break lines at logical points

C). Break lines only at the end of statements

D). Never break lines, keep them as is

Which of the following is NOT a technique to break long lines in JavaScript?

A). String Concatenation with Line Breaks

B). String Concatenation with Backticks

C). String Concatenation with Plus Operator

D). String Concatenation with Minus Operator

What is the recommended maximum line length in JavaScript?

A). 80 characters

B). 100 characters

C). 120 characters

D). 150 characters

Which of the following is a code formatting tool for JavaScript?

A). Prettier

B). Babel

C). Webpack

D). ESLint

What character sequence is used for a line break in JavaScript strings?

A). \n

B). \t

C). \r

D). \b