How does this skill improve code quality?

It enforces strict syntax, explicit type conversions, and modern module patterns to reduce runtime bugs and improve codebase readability.

Can I use this for existing projects?

Absolutely. It is ideal for reviewing existing code, refactoring legacy modules, or establishing a baseline for new project architecture.

What runtime APIs does it prioritize?

The skill encourages modern standards like globalThis over window and import.meta.dirname for reliable directory path handling.

Does it support TypeScript specific features?

Yes, it provides specific conventions for TypeScript, including explicit .ts extensions, type-safe comparisons, and preferred type casting methods.

JavaScript & TypeScript Best Practices

Name: JavaScript & TypeScript Best Practices
Author: eser

byeser

•

開発者ツール

Standardizes JavaScript and TypeScript development through opinionated conventions for syntax, modules, types, and runtime behavior.

This skill provides a comprehensive set of guidelines for writing clean, consistent, and high-performance JavaScript and TypeScript code. It assists developers in adhering to modern standards, such as utilizing explicit file extensions, direct named exports, and strict type handling. By integrating these practices, Claude can help ensure that codebases remain maintainable, scalable, and free from common runtime pitfalls like prototype mutation or improper truthiness checks across various runtime environments.

主な機能

01Enforces consistent module patterns using named exports and namespace imports.

02Implements best practices for variable declaration and module resolution.

03Promotes modern syntax conventions like nullish coalescing and strict equality.

04Standardizes runtime API usage, including modern globals and directory path handling.

0529 GitHub stars

06Guides explicit typing and type conversion practices to prevent runtime errors.

ユースケース

01Reviewing pull requests for adherence to organizational coding conventions.

02Refactoring legacy JavaScript projects to modern TypeScript standards.

03Maintaining code consistency across large-scale mono-repositories.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add eser/rules javascript-practices

For use in Claude.ai and ChatGPT

Download Skill