hoangnguyen0403/javascript-best-practices
skills/javascript/javascript-best-practices/SKILL.md
Idiomatic JavaScript patterns and conventions for maintainable code. Use when writing or refactoring JavaScript following idiomatic patterns and conventions.
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Last scanned: May 20, 2026, 3:03 AM124.1s3 files scanned
SKILL.md
- name:
- javascript-best-practices
- description:
- Idiomatic JavaScript patterns and conventions for maintainable code. Use when writing or refactoring JavaScript following idiomatic patterns and conventions.
JavaScript Best Practices
Priority: P1 (OPERATIONAL)
Implementation Guidelines
- Naming:
camelCase(vars/funcs),PascalCase(classes),UPPER_SNAKE(constants). - Errors: Throw
Errorobjects only. Handle all async errors. - Comments: JSDoc for APIs. Explain "why" not "what".
- Files: One entity per file.
index.jsfor exports. - Modules: Named exports only. Order: Ext -> Int -> Rel.
Anti-Patterns
- No Globals: Encapsulate state.
- No Magic Numbers: Use
const. - No Nesting: Guard clauses/early returns.
- No Defaults: Use named exports.
- No Side Effects: Keep functions pure.
Code & Reference
See references/REFERENCE.md for constants, custom errors, async patterns, and module structure examples.
Related Topics
language | tooling
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