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.
852 B
852 B
title, impact, impactDescription, tags
| title | impact | impactDescription | tags |
|---|---|---|---|
| Suppress Expected Hydration Mismatches | LOW-MEDIUM | avoids noisy hydration warnings for known differences | rendering, hydration, ssr, nextjs |
Suppress Expected Hydration Mismatches
In SSR frameworks (e.g., Next.js), some values are intentionally different on server vs client (random IDs, dates, locale/timezone formatting). For these expected mismatches, wrap the dynamic text in an element with suppressHydrationWarning to prevent noisy warnings. Do not use this to hide real bugs. Don’t overuse it.
Incorrect (known mismatch warnings):
function Timestamp() {
return <span>{new Date().toLocaleString()}</span>;
}
Correct (suppress expected mismatch only):
function Timestamp() {
return <span suppressHydrationWarning>{new Date().toLocaleString()}</span>;
}