HTML Comments and Entities
Comments are notes for people who read the code. The browser does not show them as page content. Write a comment like <!-- This is a note -->. HTML entities let you write special characters safely. For example, < displays a less-than sign, > displays a greater-than sign, & displays an ampersand, and © displays the copyright symbol. You may need an entity when a character could be confused with HTML syntax or when you want a named symbol.
Why this matters
- ·Comments make code easier to explain and maintain.
- ·Entities let you display special characters as text.
- ·They are useful when text contains HTML-looking symbols.
Common mistakes
- ·Do not put passwords or secrets in comments because visitors can still view the source.
- ·Do not use entities when normal text already works and readability would be hurt.
- ·Remember that comments are hidden visually, not truly private.
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Frequently asked questions
No. They are notes in the HTML source.
Practice questions
Question 1
Write a comment above a heading.
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Question 2
Display "5 < 10" as text.
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Quick check
Just for this topic answer honestly, then check yourself.
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