Which of the following is the correct way to write a comment in JavaScript?
a) # This is a comment
b) // This is a comment
c)
d) /* This is a comment */
Answer:
b) // This is a comment
Explanation:
In JavaScript, single-line comments are written using //
at the beginning of the comment. For multi-line comments, /* */
is used.
Example of both single-line and multi-line comments:
// This is a single-line comment
/*
This is a multi-line comment
*/
Comments are ignored by the JavaScript engine and are used to explain the code or leave notes for other developers.