How Do You Insert A Comment In A JavaScript File?

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

How do you write a comment in a JavaScript function?

1. Answer: Use the syntax “// text” and “/* text */” Comments in CSS are typically used to explain the purpose of the style rules declarations. …
2. Single-line comments. JavaScript single line comment begins with // , See the example below: …
3. Multi-line comments. …
4. Related FAQ.

How do you write a good comment in JavaScript?

1. Introduction.
2. Call things by their name — easy, short and readable variable and function names.
3. Avoid globals.
4. Stick to a strict coding style.
5. Comment as much as needed but not more.
6. Avoid mixing with other technologies.
7. Use shortcut notation when it makes sense.
8. Modularize — one function per task.

What is the incorrect way to add a comment in JavaScript?

Multi-line comments

start with /* and end with */

. Any text between /* and */ will be ignored by JavaScript.

How do you indicate a comment of this is a comment in a JavaScript?

Comments in JavaScript

enable the developer to add notes about the script or comment out sections of script that should not be executed by the interpreter

. Comments can be single line comments (using the // marker) or multi-line (beginning with /* and ending with */).

How do you comment a script tag?

Commenting scripts in JavaScript The JavaScript engine allows the string “

<!

–” to occur at the start of a SCRIPT element, and ignores further characters until the end of the line. JavaScript interprets “//” as starting a comment extending to the end of the current line.

What are the two types of comments in JavaScript?

• Single-line Comment.
• Multi-line Comment.

How do you write a comment in a function?

The single line comment is

//

. Everything from the // to the end of the line is a comment. To mark an entire region as a comment, use /* to start the comment and */ to end the comment.

How do you put a comment in HTML?

To write HTML comments

put <! — and —> at either end of the comment

. HTML comments are notes to keep HTML code organized and are ignored by the browser.

Why symbols is used for comments in JavaScript?

Comment Out. The JavaScript commenting out means that

you take a part of the code and surround it with JavaScript

comment symbols. Comments are not executed by the browser, which means that they won’t be displayed. Therefore, the JavaScript comment lets you comment a line, a part of it, or a block of code.

How do you create a comment in Java?

Style. By convention, in Java, documentation comments are

set inside the comment delimiters /**

… */ with one comment per class, interface, or member. The comment should appear right before the declaration of the class, interface or member and each line of the comment should begin with a “*”.

How do you enter a comment in a program?

A comment

starts with a slash asterisk /* and ends with a asterisk slash */

and can be anywhere in your program. Comments can span several lines within your C program. Comments are typically added directly above the related C source code.

Which symbol is used for comments in JavaScript Mcq?

Which symbol is used for comments in Javascript? Explanation: Single line comments start with

//

. 20.

How do you insert comments in Python code?

Comment Syntax

Comments in Python begin with a

hash mark ( # )

and whitespace character and continue to the end of the line.

How do you add comments in Python code?

A comment in Python starts with the hash character, # , and extends to the end of the physical line. A hash character within a string value is not seen as a comment, though. To be precise, a comment can be written in three ways – entirely on its own line, next to a statement of code, and

as a multi-line comment block

.

How do you comment in HTML and CSS?

How to Comment in CSS. To comment in CSS, simply

place your plain text inside /* */ marks

. This tells the browser that they are notes and should not be rendered on the front end.

How do you comment or code in HTML?

1. Toggle comment/uncomment. Mac: cmd+/ Windows: ctrl+/
2. To comment. Mac: cmd+k cmd+c. Windows: ctrl+k ctrl+c.
3. Uncomment. Mac: cmd+k cmd+u. Windows: ctrl+k ctrl+u.

How do you comment a paragraph in Java?

Use

// text

when you want to comment a single line of code. Use /* text */ when you want to comment multiple lines of code. Use /** documentation */ when you would want to add some info about the program that can be used for automatic generation of program documentation.

What is comment tag in HTML?

The HTML comment tag is

used to add text to an HTML document without including that text in the Web page

. When used in an ION Script page, HTML comment tags and the content they enclose are passed unchanged directly to the browser. The HTML comment tag consists of the opening tag <!–

What is the correct syntax for adding comments in JavaScript Mcq?

Explanation: Correct Syntax for comments in JavaScript is

//comment

. 5.

How do you add a comment to a method in Java?

simple thing is ,you just

type /** and press Enter on the top of method

,where you want generate comment . it automatically generates the element comment .

How do you comment all lines in Java?

Multi line comments in Java start with /* and end with */. You can comment multiple lines just by

placing them between /* and */

.

What are comments in Java?

Comments in Java are

the statements that are not executed by the compiler and interpreter

. It can be used to provide information or explanation about the variable, method, class or any statement. It can also be used to hide program code for a specific time.

What is the purpose of adding a comment in the program What are the two ways used to add the comments in Python?

In Python, there are two ways to annotate your code. The first

is to include comments that detail or indicate what a section of code – or snippet

– does. The second makes use of multi-line comments or paragraphs that serve as documentation for others reading your code.

Which of the following is used to insert a comment?

Explanation: A comment in Python starts with the

hash character

, # , and extends to the end of the physical line. A hash character within a string value is not seen as a comment, though.

How do you comment out a line in Python shortcut?

1. Single line comment. Ctrl + 1.
2. Multi-line comment select the lines to be commented. Ctrl + 4.
3. Unblock Multi-line comment. Ctrl + 5.

How do you comment out a class in Python?

1. Python comments start with the # character and extend to the end of the line.
2. We can start a comment from the start of the line, after some whitespaces or code.
3. If the hash character is present in a string literal, it’s part of the string.

What is comment in Python with example?

A Python comment is a line of text in a program that is not executed by the interpreter. Comments are

used during debugging to identify issues and to explain code

. Comments start with a hash character (#).