HTML comments
HTML comments
HTML comments can be used to add notes and explanations to the code, without affecting how the web page is displayed. Comments are not visible on the web page, but they can be viewed by inspecting the page source or using developer tools.
Here is the syntax for adding a comment in HTML:
<!-- This is a comment -->
Anything between the <!– and –> delimiters will be treated as a comment and will not be displayed on the web page.
Here’s an example of how comments can be used in HTML code:
<!DOCTYPE html>
<html>
<head>
<meta charset=”UTF-8″>
<title>My HTML Page</title>
</head>
<body>
<h1>Welcome to my HTML page</h1>
<!– This is a comment explaining that the following paragraph is a sample paragraph –>
<p>This is a sample paragraph.</p>
</body>
</html>
In this example, a comment is added to explain that the following paragraph is a sample paragraph.
MultiLine Comment
In HTML, multiline comments are used to add comments that span multiple lines. Multiline comments can be helpful for providing detailed information about the code or for temporarily disabling sections of the code without deleting them.
The syntax for a multiline comment in HTML is similar to that of a single-line comment, but it spans multiple lines:
<!-- This is a multiline comment that spans multiple lines -->
In this example, the comment starts with <!– and ends with –>, but the comment itself spans multiple lines.
Valid or Invalid comment
A comment is considered valid in HTML as long as it follows the proper syntax for comments. In HTML, comments are indicated by the <!– and –> delimiters, and anything between them is treated as a comment.
Here’s an example of a valid comment in HTML:
<!-- This is a valid comment -->
In this example, the comment is enclosed within the <!– and –> delimiters, and contains text that will not be displayed on the web page.
On the other hand, if a comment does not follow the proper syntax, it will be considered invalid and may cause errors or unexpected behavior in the code. For example, if a comment is not properly closed with the –> delimiter, it may cause the rest of the code to be treated as a comment, resulting in unexpected behavior.
Here’s an example of an invalid comment in HTML:
<!-- This comment is not closed
In this example, the comment is not properly closed with the –> delimiter, which could cause issues with the code.
In summary, a valid comment in HTML follows the proper syntax and does not cause errors or unexpected behavior in the code.