internationalization

Initialize i18next and react-i18next for locale-aware React translations.

Updated Aug 27, 2026
One-click install
npx skills add https://github.com/Whaleylaw/llm-lawyer --skill internationalization-whaleylaw
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: internationalization
Source: https://github.com/Whaleylaw/llm-lawyer/tree/main/.claude/skills/internationalization
Command: npx skills add https://github.com/Whaleylaw/llm-lawyer --skill internationalization-whaleylaw

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Adds structured multilingual support and locale-aware text, date, number, and currency formatting to React applications so user-facing strings and formats are correct for each language and region.

Core Features & Use Cases

  • i18next/react-i18next integration for centralized translation management and component-level translation hooks.
  • Dynamic language switching and persistence so users can change languages at runtime and keep their preference.
  • Locale-aware formatting and pluralization using the Intl API and i18next plural/interpolation options.
  • Lazy loading and namespace management to split translations by feature for performance and maintainability.
  • Use case: Add English and Spanish support to a personal injury case management app, switching UI language and formatting case dates/currency per user locale.

Quick Start

Use the internationalization skill to initialize i18next, add translation files for your target languages, and integrate the useTranslation hook into your components.

Frequently Asked Questions about internationalization

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I add multilingual UI support and language switching to a React application?

To add multilingual UI support to a React application, initialize i18next with translation resources and integrate the useTranslation hook in components. This enables dynamic language switching and persists user locale preferences across sessions.

What is the best way to handle locale-aware formatting for dates, numbers, and currency in React?

The best way to handle locale-aware formatting for dates, numbers, and currency is using the Intl API alongside i18next interpolation options. This ensures text and formats render accurately for each targeted language and region.

How do I manage pluralization and interpolation in react-i18next translations?

Pluralization and interpolation in react-i18next are managed through i18next's built-in plural and interpolation options. This functionality automatically selects correct grammatical plural forms and injects dynamic variables into translated strings.

Can I lazy-load translation namespaces in i18next to improve React performance?

Yes, you can lazy-load translation namespaces in i18next to split translations by feature. This approach improves application performance and maintains codebase efficiency by loading language resources only when required.

Does this internationalization approach work with backend translation resources instead of local files?

Yes, this internationalization approach works with backend translation resources instead of local files. You can initialize i18next with a backend loader to fetch resources dynamically rather than bundling translations locally.