Js Ts Best Practices

Quality score: 70/100 · Category: Engineering · Sub-category: performance

lang:typescriptlang:javascript

JavaScript and TypeScript best practices covering naming conventions, control flow, state management, TypeScript patterns (avoid any/enum, prefer type over interface), safety (input validation, assertions, error handling), performance optimization (reduce branching/looping, memoization, defer await, cache property access, storage API caching, avoid needless allocations, currying for hot paths), and documentation (JSDoc, comment markers). Use when writing JS/TS functions, refactoring code for performance, reviewing code quality, fixing type errors, optimizing loops or conditionals, adding validation, or improving error messages.

What this skill does

Js Ts Best Practices is a production-ready Claude Code skill (quality score 70/100) in the performance sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/js-ts-best-practices/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when writing JS/TS functions, refactoring code for performance, reviewing code quality, fixing type errors, optimizing loops or conditionals, adding validation, or improving error messages.

Who uses this skill

The Js Ts Best Practices skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/js-ts-best-practices
curl -L https://claudskills.com/skills/js-ts-best-practices/SKILL.md \
  -o ~/.claude/skills/js-ts-best-practices/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/js-ts-best-practices/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/js-ts-best-practices/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\js-ts-best-practices\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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