Vue i18n Tutorial: Localize a Vue 3 App with vue-i18n (2026)
Complete guide to internationalizing a Vue 3 app with vue-i18n v11: Composition API setup, useI18n, message files, pluralization with the pipe syntax, number/date formatting, language switching, lazy loading, RTL support, SFC <i18n> blocks, TypeScript key inference, Vue Router locale prefixes, and exporting to PO files.