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Use when the user asks "what is X?", "how does X work?", or is confused about a JavaScript concept, syntax, built-in method, or API. Defines the concept in plain English, provides a minimal code example, and lists common beginner gotchas.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Use when the user wants to check if their JavaScript code is efficient, asks about Big-O complexity, suspects a memory leak, or notices slow performance. Analyses time/space complexity, identifies hidden bottlenecks, and provides an optimized version.
Use when the user wants to practice, train, or test their understanding of a JavaScript topic. Generates a focused coding challenge with requirements, boilerplate, and scoring — never gives away the solution.
Use when the user pastes messy, repetitive, tightly-coupled, or hard-to-maintain JavaScript code. Identifies the core structural problem, selects an appropriate design pattern (Module, Observer, Factory, Strategy, etc.), and refactors with inline explanations.
| name | explain-concept |
| description | Use when the user asks "what is X?", "how does X work?", or is confused about a JavaScript concept, syntax, built-in method, or API. Defines the concept in plain English, provides a minimal code example, and lists common beginner gotchas. |
| argument-hint | [concept name, e.g. "closures", "Promise.all", "event delegation"] |
Use this skill when the user is stuck on a specific syntax, built-in object, or API method.
Promise.all when fetching data from three independent APIs at once").