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- Added new skills: find-skills, frontend-ui-engineering, and vercel-react-best-practices to skills-lock.json. - Updated use-pixel-heat.ts to import both animate and AnimationPlaybackControls from motion for improved animation handling.
753 B
753 B
title, impact, impactDescription, tags
| title | impact | impactDescription | tags |
|---|---|---|---|
| Combine Multiple Array Iterations | LOW-MEDIUM | reduces iterations | javascript, arrays, loops, performance |
Combine Multiple Array Iterations
Multiple .filter() or .map() calls iterate the array multiple times. Combine into one loop.
Incorrect (3 iterations):
const admins = users.filter(u => u.isAdmin)
const testers = users.filter(u => u.isTester)
const inactive = users.filter(u => !u.isActive)
Correct (1 iteration):
const admins: User[] = []
const testers: User[] = []
const inactive: User[] = []
for (const user of users) {
if (user.isAdmin) admins.push(user)
if (user.isTester) testers.push(user)
if (!user.isActive) inactive.push(user)
}