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id, title, category, status, verification_status, canonical_id, aliases, duplicate_of, source_trust_level, confidence_score, created_at, updated_at, review_reason, merge_history, tags, raw_sources, applied_in, github_commit
id title category status verification_status canonical_id aliases duplicate_of source_trust_level confidence_score created_at updated_at review_reason merge_history tags raw_sources applied_in github_commit
html-comments HTML Comments Frontend draft conceptual
HTML comment syntax
comment tag
comment out HTML
hide HTML content
HTML annotations
B 0.90 2026-06-23 2026-06-23
html
web
frontend
w3schools
comments
debugging
https://www.w3schools.com/html/html_comments.asp

HTML Comments

🎯 한 줄 통찰 (One-line insight)

HTML comments are written between <!-- and -->, are not displayed in the browser, and help document source code, hide content temporarily, and debug pages. [S1]

🧠 핵심 개념 (Core concepts)

  • Comments are invisible — HTML comments are not displayed in the browser, but they can help document your HTML source code. [S1]
  • Comment syntax — written as <!-- Write your comments here -->. The exclamation point (!) appears in the opening tag but not the closing tag. [S1]
  • Documentation use — comments can hold notes and reminders for the author. [S1]
  • Hiding content — comments can temporarily conceal content (a block, multiple lines, or a mid-line/inline section). [S1]
  • Debugging aid — comment out HTML lines individually to locate errors. [S1]

🧩 추출된 패턴 (Extracted patterns)

  • Note/reminder pattern — drop <!-- reminder --> markers near relevant markup. [S1]
  • Block-hide pattern — wrap one or many lines in <!-- … --> to remove them from rendering without deleting them. [S1]
  • Inline-hide pattern<!-- … --> placed mid-line hides just that fragment. [S1]
  • Debug-by-elimination pattern — comment out lines one at a time to isolate the source of an error. [S1]

📖 세부 내용 (Details)

HTML comments are not displayed in the browser, but they can help document your HTML source code. [S1]

Comment syntax The basic syntax for an HTML comment is the text written between <!-- and -->. Note that the exclamation point (!) appears in the opening tag but not the closing tag. [S1]

<!-- Write your comments here -->

Adding comments Comments can include notifications and reminders. [S1]

<!-- This is a comment -->

<p>This is a paragraph.</p>

<!-- Remember to add more information here -->

Hiding content Comments can conceal content temporarily. [S1]

<p>This is a paragraph.</p>

<!-- <p>This is another paragraph </p> -->

<p>This is a paragraph too.</p>

Multiple lines can be hidden between the opening and closing comment delimiters. Comments are useful for debugging — comment out HTML lines individually to locate errors. [S1]

<p>This is a paragraph.</p>
<!--
<p>Look at this cool image:</p>
<img border="0" src="pic_trulli.jpg" alt="Trulli">
-->
<p>This is a paragraph too.</p>

Hiding inline content Comments can obscure mid-code (inline) sections. [S1]

<p>This <!-- great text --> is a paragraph.</p>

🛠️ 적용 사례 (Applied in summary)

The reminder note, the block-hidden paragraph/image, and the inline-hidden fragment above are the canonical applied examples from the source. No external project/commit applications found in the source.

💻 코드 패턴 (Code patterns)

Basic comment (HTML):

<!-- Write your comments here -->

Comment out a block of markup:

<!--
<p>Look at this cool image:</p>
<img border="0" src="pic_trulli.jpg" alt="Trulli">
-->

Hide an inline fragment:

<p>This <!-- great text --> is a paragraph.</p>

⚖️ 모순 및 업데이트 (Contradictions & updates)

No contradictions found in the source.

검증 상태 및 신뢰도

  • 상태: draft
  • 검증 단계: conceptual (실제 적용 사례 발견 시 applied/validated로 승격 가능)
  • 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
  • 신뢰 점수: 0.90
  • 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

📚 출처 (Sources)

📝 변경 이력 (Change history)

  • 2026-06-23: Initial draft synthesized from the W3Schools "HTML Comments" page (Astra wiki-curation, P-Reinforce v3.1 format).