2nd/10_Wiki/Dev/Topic_CSharp/CSharp_Variables_Identifiers.md

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
csharp-variables-identifiers	C# Identifiers	Programming_Language	draft	conceptual		variable naming rules C# C# 식별자		B	0.83	2026-07-04	2026-07-04			csharp programming-language w3schools identifiers naming	https://www.w3schools.com/cs/cs_variables_identifiers.php

CSharp Identifiers

🎯 한 줄 통찰 (One-line insight)

C#'s identifier rules (letters/digits/underscore, must start with letter/underscore, case-sensitive, no reserved words) are the same rule-set every C-family language in this series has used verbatim — the interesting detail isn't the rule itself but the STYLE convention layered on top: C# explicitly recommends lowercase-starting names (camelCase, e.g. minutesPerHour), which will matter later when C#'s method/class names are shown starting with an UPPERCASE letter (PascalCase) — a naming-convention split by identifier kind that C and C++ never enforced this explicitly. [S1]

🧠 핵심 개념 (Core concepts)

• Identifier — the unique name given to a variable. [S1]
• Character rules — letters, digits, and underscore (_) allowed; must begin with a letter or underscore (never a digit). [S1]
• Case sensitivity — myVar and myvar are distinct variables. [S1]
• No whitespace — names cannot contain spaces. [S1]
• No reserved words — C# keywords like int or double cannot be used as identifier names. [S1]
• Style convention (recommended, not enforced) — start with a lowercase letter; prefer descriptive names (minutesPerHour) over terse ones (m) for readability and maintainability. [S1]

📖 세부 내용 (Details)

• Good vs. acceptable naming contrast: int minutesPerHour = 60; // Good vs int m = 60; // OK, but not so easy to understand. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

• 명명 규칙 자체는 C/C++/Java와 동일: 문자/숫자/언더스코어, 숫자로 시작 불가, 대소문자 구분, 예약어 사용 불가라는 규칙이 이전 언어들과 동일함이 확인됨 — 차이는 규칙이 아니라 스타일 권장(lowercase 시작, 서술적 이름 선호)에 있음. [S1]

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — minutesPerHour vs m 이름 비교가 원문에서 스타일 예제로 제시됨. [S1]

💻 코드 패턴 (Code patterns)

Descriptive vs. terse identifier naming (C#):

// Good
int minutesPerHour = 60;
// OK, but not so easy to understand what m actually is
int m = 60;

✅ 검증 상태 및 신뢰도

• 상태: draft
• 검증 단계: conceptual
• 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
• 신뢰 점수: 0.83
• 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

• 상위/루트: C# Tutorial
• 관련 개념: CSharp Variables, CSharp Variables Constants
• 참조 맥락: Variables 섹션 — Constants 챕터로 이어짐.

📚 출처 (Sources)

• [S1] W3Schools — C# Identifiers — https://www.w3schools.com/cs/cs_variables_identifiers.php

📝 변경 이력 (Change history)

• 2026-07-04: Initial draft synthesized from the W3Schools "C# Identifiers" page (Astra wiki-curation, P-Reinforce v3.1 format).