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enum-plus for Globalization with i18next

Introduction

@enum-plus/plugin-react-i18next is a plugin for enum-plus that automatically integrates with react-i18next to achieve internationalization of enum labels. It allows you to use i18next localization keys in your enum definitions, which are dynamically displayed as translated text for the current language.

This plugin does not support automatic UI updates after switching languages, which requires integration with front-end frameworks (such as React, Vue, etc.). Please consider using the @enum-plus/plugin-react or @enum-plus/plugin-vue plugins.

Installation

npm install @enum-plus/plugin-react-i18next

Import the @enum-plus/plugin-react-i18next plugin and install it in the entry file of your application:

import reactI18nextPlugin from '@enum-plus/plugin-react-i18next';
import { Enum } from 'enum-plus';

Enum.use(reactI18nextPlugin);

Plugin Options

When installing the plugin, you can pass a configuration object to set global options for the plugin:

Enum.use(reactI18nextPlugin, {
  localize: {
    // Set the i18next instance, defaults to the global i18next instance if necessary
    instance: i18next,
    // Options to pass to the i18next.t method
    tOptions: {
      // Set the namespace
      ns: 'my-namespace',
      // Set the default value for the return value
      defaultValue: '-',
      // Other options supported by the i18next.t method
      // Please refer to https://www.i18next.com/translation-function/essentials#overview-options
    },
  },
});

tOptions also supports a function form to dynamically generate options, and can even directly return the final translated text.

// Use function form to dynamically generate tOptions
Enum.use(reactI18nextPlugin, {
  localize: {
    tOptions: (key) => {
      if (key === 'week.sunday') {
        return { ns: 'my-namespace' };
      }
      return { ns: 'translation' }; // Default namespace
    },
  },
});

You can even return a string directly in tOptions as the final translated text to have full control over the behavior of the localize method.

Enum.use(reactI18nextPlugin, {
  localize: {
    tOptions: (key) => {
      if (key === 'week.sunday') {
        return 'Sunday'; // Directly return the translated text
      }
      return instance.t(key); // Return the default translation in other cases
    },
  },
});

## Basic Usage

You can achieve internationalization of enum labels by using localization keys in the enum definition.

```js
import { Enum } from 'enum-plus';

const WeekEnum = Enum(
  {
    Monday: { value: 1, label: 'week.monday' },
    Tuesday: { value: 2, label: 'week.tuesday' },
  },
  {
    name: 'weekDays.name', // Optional enum type name
  }
);
WeekEnum.label(1); // Monday
WeekEnum.name; // Week

i18next.changeLanguage('zh-CN');
WeekEnum.label(1); // 星期一
WeekEnum.name; // 星期