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Tommaso CasaburiandClaude Opus 4.6
189d1c2165
Mirrors .cursor and .codex structure with Claude model assignments: - haiku for lighter tasks (translator, browser-check, profiler) - sonnet for standard tasks (code-quality, plan-implementer, etc.) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
824 B
824 B
title, impact, impactDescription, tags
| title | impact | impactDescription | tags |
|---|---|---|---|
| Narrow Effect Dependencies | LOW | minimizes effect re-runs | rerender, useEffect, dependencies, optimization |
Narrow Effect Dependencies
Specify primitive dependencies instead of objects to minimize effect re-runs.
Incorrect (re-runs on any user field change):
useEffect(() => {
console.log(user.id)
}, [user])
Correct (re-runs only when id changes):
useEffect(() => {
console.log(user.id)
}, [user.id])
For derived state, compute outside effect:
// Incorrect: runs on width=767, 766, 765...
useEffect(() => {
if (width < 768) {
enableMobileMode()
}
}, [width])
// Correct: runs only on boolean transition
const isMobile = width < 768
useEffect(() => {
if (isMobile) {
enableMobileMode()
}
}, [isMobile])