react-x18n: internationalisation for react

x18n.js is an internationalisation library for JavaScript and react-x18n is a helper library which takes care of updating the user interface for you.

How to use it

Just require the module whenever you need internationalisation:

let {x18n, t} = require('react-x18n')

As you can see the react-x18n module exports two objects: x18n and t:

Use the x18n property to access the API provided by x18n.js (registering dictionaries, changing language, etc.). But instead of using the t function provided by x18n.js, use the t function provided by react-x18n to create self-updating elements.

To learn about the x18n.js API, head over to the repository.

How does it work?

t('key') and t.plural('key') both will return a new react element that will take care of updating itself dynamically. This means you don't need to worry about updating the UI when the language changes.

Example

let React = require('react')
let ReactDOM = require('react-dom')
let {x18n, t} = require('react-x18n')

// Dictionary for english language
x18n.register('en', {
  'greeting': 'Hello %{name}!',
  'users_online': {
    1: 'There is one user online.',
    n: 'There are %1 users online.'
  }
})

// Dictionary for german language
x18n.register('de', {
  'greeting': 'Hallo %{name}!',
  'users_online': {
    1: 'Es ist ein Benutzer online.',
    n: 'Es sind %1 Benuzer online.'
  }
})

// Create react element
let App = React.createClass({
  _changeDE: function () {
    // Change language to german
    x18n.set('de')
  },

  _changeEN: function () {
    // Change language to english
    x18n.set('en')
  },

  render: function () {
    return <div>
      {t('greeting', {name: 'Peter'})} <br />
      {t.plural('users_online', 10)} <br />
      {t.plural('users_online', 1)}
      <hr />
      <span onClick={this._changeDE}>Change language to DE</span> <br />
      <span onClick={this._changeEN}>Change Language to EN</span>
    </div>
  }
})

// Render the app
ReactDOM.render(<App />, document.getElementById('app'))

Installation and tests

npm install react-x18n --save

This will automatically install the x18n.js library for you as well.

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To run tests (standard.js compliance check and jest unit tests):

npm test

Roadmap

- Misc:

• Better unit-tests.