What is the purpose of i18n?
Internationalization (or i18n, which stands for i--n) is the process of adapting software and web applications to multiple languages, allowing their application to be used by multiple language-speaking users. By ensuring that your application supports multiple languages, you can reach a broader audience and ensure a smooth user experience for multilingual users.
原文: https://angular-2-training-book.rangle.io/handout/i18n/