I18next: Load `en-US` and not `en`

[MaxLeiter]

.init({
    backend: opts,
    lng: `en-US`, debug: true, load: "currentOnly"

For some reason, en is also being loaded (and subsequently not found).

How can I fix this? I only want en-US to load.

[jamuhl]

do you have en set as fallback language? that would make sense - else it really should only load en-US

[MaxLeiter]

No fallback specified

[jamuhl]

could you paste your complete config? really that should work...there is a test case asserting this works as expected:

https://github.com/i18next/i18next/blob/master/test/languageUtils.spec.js#L136

really strange...

[Uepsilon]

reading the docs

language codes to lookup, given set language is 'en-US': 'all' --> ['en-US', 'en', 'dev'], 'currentOnly' --> 'en-US', 'languageOnly' --> 'en'

when I use the language detector, this config returns en-US even though this is clearly not in the whitelist.

let i18nOptions = {
  backend: {
    loadPath: '/locales/{{lng}}/{{ns}}.json',
  },
  fallbackLng: 'en',
  react: {
    wait: true,
  },
  ns: ['common'],
  defaultNS: 'common',
  debug: process.env.NODE_ENV === 'development',
  cache: {
    enabled: true,
  },
  load: 'languageOnly',
  whitelist: ['de', 'en'],
}
i18n.use(LanguageDetector)
  .use(Backend)
  .init(i18nOptions)

changing the load-option to currentOnly resolves the issue.

it seems to me, that either the config is wrong, or the behaviour.

Version:

i18next@^9.0.0:
  version "9.0.0"
  resolved "https://registry.yarnpkg.com/i18next/-/i18next-9.0.0.tgz#a89ab0481b5b6b3964f55b12f03de9063d8f4500"

that whole peace of code is not very straight forward, is it?
https://github.com/i18next/i18next/blob/4caedbf610fe48c347b3448d76b703a9b07dfaed/src/LanguageUtils.js#L97-L101

[jamuhl]

Feel free to improve the code...;)...PR are very welcome.

language detector always returns what it detects - also i18next.language reflects what it detected.

i18next.languages is an array and reflects what is used!!!

[jamuhl]

closing for now...reopen if you need more info or still an issue