#useLang

useLang returns the current locale code so you can render language-specific content or route users accordingly.

• Type: () => string

The hook reads the active language from the runtime context and stays in sync when users switch locales.

import { useLang } from '@rspress/core/runtime';

export default function Comp() {
  const lang = useLang();
  return <span>Current language: {lang}</span>;
}