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zhaoguiyang.site/.agents/skills/vercel-react-best-practices/rules/js-cache-property-access.md
zguiyang bbb2f41591 feat: add new OpenSpec skills for change management and onboarding
- Created `openspec-ff-change` skill for fast-forward artifact creation.
- Introduced `openspec-new-change` skill for structured change creation.
- Developed `openspec-onboard` skill for guided onboarding through OpenSpec workflow.
- Added `openspec-sync-specs` skill for syncing delta specs to main specs.
- Implemented `openspec-verify-change` skill for verifying implementation against change artifacts.
- Updated `.gitignore` to exclude OpenSpec generated files.
- Added `skills-lock.json` to manage skill dependencies.
2026-03-13 13:18:03 +08:00

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title, impact, impactDescription, tags
title impact impactDescription tags
Cache Property Access in Loops LOW-MEDIUM reduces lookups javascript, loops, optimization, caching

Cache Property Access in Loops

Cache object property lookups in hot paths.

Incorrect (3 lookups × N iterations):

for (let i = 0; i < arr.length; i++) {
  process(obj.config.settings.value)
}

Correct (1 lookup total):

const value = obj.config.settings.value
const len = arr.length
for (let i = 0; i < len; i++) {
  process(value)
}