fargo
1a822493ba
963 markdown files reformatted with the repository's pinned prettier so pnpm format:check covers the folded tree like every other repo file. The formatter's embedded-language pass also normalized code fences (TS semicolons, closed HTML tags in examples, lowercased CSS hex colors, one renumbered list that skipped an index). Alphanumeric token deltas vs the fold commit were audited file-by-file; all are formatter-equivalent markup normalizations plus the four sanitized skills.
1023 B
1023 B
title, impact, impactDescription, tags
| title | impact | impactDescription | tags |
|---|---|---|---|
| Do not wrap a simple expression with a primitive result type in useMemo | LOW-MEDIUM | wasted computation on every render | rerender, useMemo, optimization |
Do not wrap a simple expression with a primitive result type in useMemo
When an expression is simple (few logical or arithmetical operators) and has a primitive result type (boolean, number, string), do not wrap it in useMemo.
Calling useMemo and comparing hook dependencies may consume more resources than the expression itself.
Incorrect:
function Header({ user, notifications }: Props) {
const isLoading = useMemo(() => {
return user.isLoading || notifications.isLoading;
}, [user.isLoading, notifications.isLoading]);
if (isLoading) return <Skeleton />;
// return some markup
}
Correct:
function Header({ user, notifications }: Props) {
const isLoading = user.isLoading || notifications.isLoading;
if (isLoading) return <Skeleton />;
// return some markup
}