Type Safe I18n for TypeScript

git clone git@github.com:renuo/lawoon-frontend.git

Translations

Translations are held in public/i18n/{locale}.json and generated on each server start. If you add new keys and want to generate without server start, run:

bin/generate-i18n

Translations can be nested:

{
  "parentKey": {
     "childKey": "Child Value"
  }
}

With the generate-command a static .ts-File is created. All translations are available via the static class I18n.t. (e.g. I18n.t.example). The keys will be sorted in the bin/check via bin/prettify-translations.

Interpolation

Example:

Given the translation

{
  "example": "Hello {name}."
}

// returns 'Hello world':
I18n.interpolate(i18n.t.example, {name: 'World'})

Pluralize

Pluralization can be done via I18n.pluralize(translationString, counter), while translationString would be a translation passed via I18n.t. and the counter a variable with the length. You can add two translations to a key: one for the length 1 and other for all other lengths. All variables named count will be replaced automatically via pluralize.

Example:

// selects `I18n.t.example.one` or `I18n.t.example.other` key pending on `exampleArray.length`
I18n.pluralize(I18n.t.example, exampleArray.length)

and the translations:

{
  "example": {
    "one": "There is one example.",
    "other": "There are {count} examples."
  }
}