setLocale('nl');
`

Now you're all set up to unleash the power of react-i18nify!

Components

The easiest way to translate or localize in your React application is by using the Translate and Localize components:

`javascript
import { Translate, Localize } from 'react-i18nify';


// => Toffe app met i18n!

// => Hallo, Aad!

// => Exporteer 1 ding

// => Exporteer 2 dingen

// =>


// => 7 april 2016

// => 3 september 2015

// => 7 jaar geleden

// => € 3,33
`

Helpers

If for some reason, you cannot use the components, you can use the translate and localize helpers instead:

`javascript
import { translate, localize } from 'react-i18nify';

translate('application.title');
// => Toffe app met i18n!
translate('application.hello', { name: 'Aad' });
// => Hallo, Aad!'
translate('export', { count: 0 });
// => Niks te exporteren
translate('application.unknown_translation');
// => unknown_translation
translate('application', { name: 'Aad' });
// => {hello: 'Hallo, Aad!', title: 'Toffe app met i18n!'}

localize(1385856000000, { dateFormat: 'date.long' });
// => 1 december 2013
localize(Math.PI, { maximumFractionDigits: 2 });
// => 3,14
localize('huh', { dateFormat: 'date.long' });
// => null
`

If you want these helpers to be re-rendered automatically when the locale or translations change, you have to wrap them in a component using its render prop:

`javascript
import { I18n, translate } from 'react-i18nify';

} />;
`

Date localization

react-i18nify uses day.js internally to handle date localization. To reduce the base bundle size, day.js localizations are not loaded by default. If you need date localization, you can manually import them. For a list of available locales, refer to the day.js list of locales.

`javascript
import 'dayjs/locale/en';
import 'dayjs/locale/nl';
import 'dayjs/locale/it';
`

API Reference

$3

React translate component, with the following props:

- value (string)

The translation key to translate.

- Other props

All other provided props will be used as replacements for the translation.

$3

React localize component, with the following props:

- value (number|string|object)

The number or date to localize.

- dateFormat (string)

The translation key for providing the format string. Only needed for localizing dates.
For the full list of formatting tokens which can be used in the format string, see the day.js documentation.

- parseFormat (string)

An optional formatting string for parsing the value when localizing dates.
For the full list of formatting tokens which can be used in the parsing string, see the day.js documentation.

- options (object)

When localizing numbers, the localize component supports all options as provided by the Javascript built-in Intl.NumberFormat object.
For the full list of options, see https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat.

$3

React I18n wrapper component, with the following prop:

- render (func)

The return value of the provide function will be rendered and automatically re-render when the locale or translations change.

$3

The used locale can be set with this function. By default, changing the locale will re-render all components.
This behavior can be prevented by providing false as a second argument.

$3

Get the currently used locale.

$3

The used translations can be set with this function. By default, changing the translations will re-render all components.
This behavior can be prevented by providing false as a second argument.

$3

Get the currently used translations.

$3

Alternatively to using setLocale, you can provide a callback to return the locale with setLocaleGetter:

`javascript
import { setLocaleGetter } from 'react-i18nify';

const localeFunction = () => 'nl';

setLocaleGetter(localeFunction);
`

$3

Alternatively to using setTranslations, you can provide a callback to return the translations with setTranslationsGetter:

`javascript
import { setTranslationsGetter } from 'react-i18nify';

const translationsFunction = () => ({
en: { ... },
nl: { ... }
});

setTranslationsGetter(translationsFunction);
`

$3

By default, when a translation is missing, the translation key will be returned in a slightly formatted way,
as can be seen in the translate('application.unknown_translation'); example above.
You can however overwrite this behavior by setting a function to handle missing translations.

`javascript
import { setHandleMissingTranslation, translate } from 'react-i18nify';

setHandleMissingTranslation((key, replacements, options, err) => Missing translation: ${key});

translate('application.unknown_translation');
// => Missing translation: application.unknown_translation
`

$3

By default, when a localization failed, null will be returned,
as can be seen in the localize('huh', { dateFormat: 'date.long' }); example above.
You can however overwrite this behavior by setting a function to handle failed localizations.

`javascript
import { setHandleFailedLocalization, localize } from 'react-i18nify';

setHandleFailedLocalization((value, options, err) => Failed localization: ${value});

localize('huh', { dateFormat: 'date.long' });
// => Failed localization: huh
`

$3

Helper function to translate a key, given an optional set of replacements. See the above Helpers section for examples.

$3

Helper function to localize a value, given a set of options. See the above Helpers section for examples.

For localizing dates, the day.js library is used.
A dateFormat option can be used for providing a translation key with the format string.
For the full list of formatting tokens which can be used in the format string, see the day.js documentation.
Moreover, parseFormat option can be used for providing a formatting string for parsing the value.
For the full list of formatting tokens which can be used in the parsing string, see the day.js documentation.

For number formatting, the localize helper supports all options as provided by the Javascript built-in Intl.NumberFormat object.
For the full list of options, see https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat.

$3

Alias for translate.

$3

Alias for localize.

$3

This function can be called to force a re-render of all I18n components.

Example application with SSR

An example application with server-side rendering using features of react-i18nify` can be found at https://github.com/sealninja/react-ssr-example.

License

MIT