Files
lobehub/.agents/skills/vercel-react-best-practices/rules/js-set-map-lookups.md
Innei 346fc4617e ♻️ refactor: migrate AI Rules to Claude Code Skills (#11737)
♻️ refactor: migrate AI Rules to Claude Code Skills system

Migrate all AI Rules from .cursor/rules/ to .agents/skills/ directory:
- Move 23 skills to .agents/skills/ (main directory)
- Update symlinks: .claude/skills, .cursor/skills, .codex/skills
- Create project-overview skill from project documentation
- Add references/ subdirectories for complex skills
- Remove LobeChat references from skill descriptions
- Delete obsolete .cursor/rules/ and .claude/commands/prompts/ directories

Skills structure enables better portability and maintainability across AI tools.
2026-01-23 22:30:18 +08:00

532 B

title, impact, impactDescription, tags
title impact impactDescription tags
Use Set/Map for O(1) Lookups LOW-MEDIUM O(n) to O(1) javascript, set, map, data-structures, performance

Use Set/Map for O(1) Lookups

Convert arrays to Set/Map for repeated membership checks.

Incorrect (O(n) per check):

const allowedIds = ['a', 'b', 'c', ...]
items.filter(item => allowedIds.includes(item.id))

Correct (O(1) per check):

const allowedIds = new Set(['a', 'b', 'c', ...])
items.filter(item => allowedIds.has(item.id))