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Antigravity Agent e9cbf23ab5 docs(10_Wiki): Dev 폴더 누락분 반영 — Topic_Programming으로 통합

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2026-07-05 00:39:13 +09:00

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title

JavaScript HTML DOM

🎯 한 줄 통찰 (One-line insight)

The HTML DOM is an object model that represents an HTML page as a tree of nodes, giving JavaScript a standardized way to access and change every element on the page. [S1]

🧠 핵심 개념 (Core concepts)

The HTML DOM is an Object Model for HTML Documents — it represents an HTML page as a tree of nodes. [S1]
The browser builds the tree on load — when a webpage loads, the browser creates a tree-like representation of the document made of nodes: Document, Element nodes (such as <html>, <body>, <a>), Attribute nodes, and Text nodes. [S1]
Three roles in one access expression — id="demo" is an HTML property, getElementById() is a DOM method, and innerHTML is a DOM property. [S1]
The DOM is a W3C Standard — defined by the World Wide Web Consortium in three parts: Core DOM, XML DOM, and HTML DOM. [S1]

🧩 추출된 패턴 (Extracted patterns)

Access then modify — get a node reference with a DOM method, then read or write a DOM property on it. [S1]
Tree traversal mindset — because the page is a tree of nodes, navigation and manipulation are expressed in terms of elements, attributes, and text nodes. [S1]

📖 세부 내용 (Details)

The HTML DOM [S1] The HTML DOM (HTML Document Object Model) is an Object Model for HTML Documents. It represents an HTML page as a tree of nodes. [S1]

The DOM Tree [S1] When a webpage loads, the browser creates a tree-like representation of the document. This tree is made of nodes for the different parts of the document: the Document node, Element nodes (for example <html>, <body>, <a>), Attribute nodes, and Text nodes. [S1]

Accessing HTML Elements [S1] HTML elements are accessed through the document. The following example accesses a paragraph element by its id and changes its content: [S1]

// Access a paragraph Element
const myPara = document.getElementById("demo");

// Change the content of the Element
myPara.innerHTML = "Hello World!";

In this example, id="demo" is an HTML property, getElementById() is a DOM method, and innerHTML is a DOM property. [S1]

What You Will Learn [S1] The tutorial covers how to: change the content of HTML elements, change the style (CSS) of HTML elements, add and delete HTML elements, and react to HTML events. [S1]

The World Wide Web Consortium [S1] The DOM is a W3C Standard (World Wide Web Consortium). The W3C DOM standard is separated into three parts: Core DOM, XML DOM, and HTML DOM. [S1]

🛠️ 적용 사례 (Applied in summary)

The page's own snippet — selecting #demo with getElementById() and assigning to innerHTML — is the canonical applied example. No external project/commit applications found in the source.

💻 코드 패턴 (Code patterns)

Access an element by id and change its content (language: JavaScript):

const myPara = document.getElementById("demo");
myPara.innerHTML = "Hello World!";

⚖️ 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: 0.88
중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

상위/루트: JavaScript Tutorial
관련 개념: JavaScript DOM Methods, JavaScript DOM Elements, JavaScript DOM Changing HTML, JavaScript Introduction
참조 맥락: The foundational model referenced by every DOM manipulation, styling, and event topic.

📚 출처 (Sources)

[S1] W3Schools — JavaScript HTML DOM — https://www.w3schools.com/js/js_htmldom.asp

📝 변경 이력 (Change history)

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

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