Js comments best practices

1. How do you write a good comment in JavaScript?
2. How do you comment out JavaScript code?
3. How do you comment a function in JavaScript?
4. Which is not correct way to write comment in JavaScript?
5. Should you comment every line of code?
6. How do you comment positively?
7. Why JavaScript is enclosed in HTML comments?
8. How are single line comments written in JavaScript?
9. Which of the following is not a valid comment in JavaScript?
10. How do you comment inside a script tag?

How do you write a good comment in JavaScript?

Comment Syntax

All characters immediately following the // syntax until the end of the line will be ignored by JavaScript. Block comments, sometimes referred to as mutli-line comments, are written with opening tags ( /* ) and closing tags ( */ ).

How do you comment out JavaScript code?

Single line Javascript comments start with two forward slashes (//). All text after the two forward slashes until the end of a line makes up a comment, even when there are forward slashes in the commented text.

How do you comment a function in JavaScript?

The JavaScript comment feature simplifies the production of more readable code. They are easy to write and recognize: a JavaScript comment block (also known as the multi-line comment) begins with */ , while a single line comment starts with //.

Which is not correct way to write comment in JavaScript?

Multi-line comments start with /* and end with */ . Any text between /* and */ will be ignored by JavaScript.

Should you comment every line of code?

In-line comments for complex block of codes. You don't need to comment every line - especially the ones that are common sense. Just the ones that matter and needs a bit of explaining for future reference.

How do you comment positively?

Exactly right! Keep it up. Excellent Keep up the good work. Exceptional Magnificent Exciting Majestic thoughts Exemplary Marvelous Exhilarating Meritorious Extraordinary Much better Fabulous My goodness, how impressive!

Why JavaScript is enclosed in HTML comments?

So when javascript was first released, a technique was needed to hide the code from older browsers so they wouldn't show it as text in the page. The 'hack' was to use HTML comments within the script block to hide the code.

How are single line comments written in JavaScript?

To create a single line comment in JavaScript, you place two slashes "//" in front of the code or text you wish to have the JavaScript interpreter ignore. When you place these two slashes, all text to the right of them will be ignored, until the next line.

Which of the following is not a valid comment in JavaScript?

C option /*COMMENT is not a valid comment Line.

How do you comment inside a script tag?

The comment ends with a "//-->". Here "//" signifies a comment in JavaScript, so we add that to prevent a browser from reading the end of the HTML comment as a piece of JavaScript code.