Comments in HTML. (Shortcut Key)

Comments play an important role in coding, they help developers understand, organize, and maintain their codebase. In HTML, comments serve as annotations within the code, offering, insights, explanations, and reminders without affecting the displayed content. Let's understand their types, usage, and essential shortcuts.

Why Use Comments in HTML?

In HTML, comments are used to add notes or explanations to the source code of a web page. They serve multiple purposes:

They help document the code, providing explanations for specific sections or lines.

They improve code readability, assisting developers in comprehending complex or intricate structures.

Comments can be used to identify or isolate issues within the code during troubleshooting or debugging processes.

They facilitate collaboration among developers by conveying intentions, strategies, or notes within the code.

Types of Comments in HTML.

Comments are not displayed in the browser and are ignored when the page is rendered. HTML supports two types of comments:

1. Single-line Comments: Denoted by , single-line comments are used for brief annotations on a single line.

Example of Single-line Comment:

<!DOCTYPE html>
<html>
  <head>
    <title>HTML Comment Example</title>
  </head>
  <body>
    <!--This is a single line comment in HTML-->
    <h2>This is a Heading.</h2>
    <h3>Welcome to AlgoLesson</h3>
  </body>
</html>

Output:

2. Multi-line Comments: Enclosed between , multi-line comments span across multiple lines and are useful for detailed explanations or larger annotations. Comments can be added anywhere within the HTML code and can span multiple lines.

Example of Multi-line Comment:

<!DOCTYPE html>
<html>
  <head>
    <title>HTML Comment Example</title>
  </head>
  <body>
    <!--This is a multi-line comment in HTML
        This will not be displayed on the browser screen-->
    <h2>This is a Heading.</h2>
    <h3>Welcome to AlgoLesson</h3>
  </body>
</html>

Inline Comment in HTML

In HTML, comments can be also used inside the content or in the middle of the code.

Example:

<p>This is a simple paragraph in HTML.</p>
<p>This an example of <!--comment inside--> HTML content.</p>

Output:

HTML Comment Shortcuts.

While various text editors and IDEs offer shortcuts to insert comments easily, some widely used keyboard shortcuts for adding comments in HTML are:

Visual Studio Code: Ctrl + / (Windows/Linux) or Cmd + / (Mac) to toggle comments for selected lines.

Sublime Text: Ctrl + / (Windows/Linux) or Cmd + / (Mac) to toggle comments for selected lines.

Notepad++: Ctrl + Shift + Q to add or remove comments for selected lines.

I hope that now you understand how to use Comments in HTML and why they are so important for developers. It helps us create a clean, maintainable, and well-documented codebase.