Single-Line Comment in HTML

Atika Islam Feb 15, 2024
  1. Comments in HTML
  2. Steps to Write a Program in HTML
  3. Write Single-Line Comments in HTML
Single-Line Comment in HTML

This article will explore different ways of adding comments to an HTML file.

Comments in HTML

There are different languages used in programming, including C, C++, C#, Python, HTML, Java, etc. Every programming language has a different syntax for writing comments.

Comments are statements that are always ignored by the compiler. These statements don’t get executed.

Comments are used for a better understanding of the source code. There are two benefits of writing comments which are as follows:

  1. Comments help us to understand our code even after years of writing it.
  2. Comments help us to understand the code written by other programmers.

Any text inserted inside the comments cannot be displayed on the browser.

Using comments, we can explain the working of every program section. Comments are also used to hide any part of the source code.

Steps to Write a Program in HTML

By following these steps, we can write a program in HTML.

  • First, you must have Notepad or Notepad++ to write the HTML source code.

    notepad main page

  • Start writing the code in HTML.

    basic html code

  • Save the file by clicking on Save As.

    saving your file

  • Save the file with the extension of .html.

    extension of .html

  • After saving the file, the default browser icon will appear on the file.
  • After clicking on the file, the browser will render the HTML.

    Program execution

Write Single-Line Comments in HTML

This code snippet shows the use of comments in HTML language.

In HTML, there are two types of comments: single-line and multi-line comments. Here, we will see how to write a single-line comment.

A single-line comment begins with <!-- and ends with -->.

    <h1> SINGLE LINE COMMENT </h1>
    <!-- Single line comment -->
    Hello -->
	hey -- -- OK-->
	<!------ Welcome

In the above code, the first tag is of HTML, a paired tag. Then the second tag is of a body of HTML.

In the body tag, there is another paired tag of heading. Then under the heading tag, there is a single-line comment starting with <!-- and ending with -->.

Another comment of Hello is also valid because it has an accurate starting and ending. Then the comment hey and OK is also valid because whatever is written inside the comments tag will be considered part of the comments.

The comment <!----> is also valid because it is an empty comment in HTML. If this occurs in a multiple of four, the comment is valid in HTML.

The last welcome comment is also valid because it has an accurate starting and ending. Then the comment <!------> name--> shows name--> on the browser, and the first half is considered a valid comment.

The last one, <!>, is invalid because it doesn’t have the correct starting and ending of the comment in HTML.

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