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Polymer Internationalization — Localization, Translation, and Language Switching

DodaTech Updated 2026-06-29 1 min read

In this tutorial, you will learn about Polymer Internationalization. We cover key concepts, practical examples, and best practices to help you master this topic.

Polymer handles i18n through mixins, computed bindings, and external translation files.

// i18n behavior/mixin
const I18nMixin = (superClass) => class extends superClass {
  _t(key) {
    const translations = { 'hello': 'Hallo', 'world': 'Welt' };
    return translations[key] || key;
  }
};

// In template: [[_t('hello')]], [[_t('world')]]

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