i18n-iso-languages

i18n for ISO 639 language codes. We support Alpha-2, Alpha-3 B and T codes from https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes

This packages is heavily based on i18n-iso-countries.

We intent to keep the interface of i18n-iso-languages as close as possible to i18n-iso-countries.

Installing

Install it using npm: npm install @cospired/i18n-iso-languages

If used in a browser environment, you will need to manually install the local you wish to support.

1var languages = require("@cospired/i18n-iso-languages");
2
3// Support german & english languages.
4languages.registerLocale(require("@cospired/i18n-iso-languages/langs/en.json"));
5languages.registerLocale(require("@cospired/i18n-iso-languages/langs/de.json"));

Code to Language

Get the name of a language by it's ISO 639-1 (Alpha-2), ISO 639-2/T or B (Alpha-3) code

1var languages = require("@cospired/i18n-iso-languages");
2console.log("de (639-1/Alpha-2) => " + languages.getName("de", "en")); // German
3console.log("en (639-1/Alpha-2) => " + languages.getName("de", "de")); // Deutsch
4console.log("de (639-2T/Alpha-3) => " + languages.getName("deu", "en")); // German
5console.log("de (639-2B/Alpha-3) => " + languages.getName("ger", "en")); // German

Get all names by their ISO 639-1 code

1var languages = require("@cospired/i18n-iso-languages");
2console.log(languages.getNames("en")); // { 'ab': 'Abkhazian', 'aa': 'Afar', [...], 'za': 'Zhuang', 'zu': 'Zulu' }

Supported languages (ISO 639-1)

• ar: Arabic (based on https://github.com/umpirsky/language-list/blob/master/data/ar/language.json)
• bg: Bulgarian (based on https://bg.wikipedia.org/wiki/Кодове_на_езици with minor adjustments)
• br: Breton (based on https://br.wikipedia.org/wiki/Listenn_glok_kodoù_ISO_639-1)
• cs: Czech (based on https://cs.wikipedia.org/wiki/Seznam_kódů_ISO_639-1)
• da: Danish (based on https://da.wikipedia.org/wiki/ISO_639-1)
• de: German (by native speaker)
• en: English (ISO 639-1 standard names)
• es: Spanish (based on https://es.wikipedia.org/wiki/ISO_639-1)
• fi: Finnish (based on https://kotoistus.fi/suositukset/suositukset-kielet-fi-koodi/)
• fr: French (based on https://fr.wikipedia.org/wiki/Liste_des_codes_ISO_639-1)
• he: Hebrew (based on ECMAScript Internationalization API data)
• hu: Hungarian (based on https://hu.wikipedia.org/wiki/ISO_639-1_nyelvkódok_listája)
• id: Indonesian (based on https://github.com/umpirsky/language-list/blob/master/data/id/language.json)
• is: Islandic (based on https://is.wikipedia.org/wiki/Listi_yfir_tungumálakóða_%C3%AD_ISO_639-1)
• it: Italian (based on https://github.com/umpirsky/language-list/blob/master/data/it/language.json)
• ja: Japanese (by professional translator)
• ko: Korean (based on https://github.com/umpirsky/language-list/blob/master/data/ko/language.json)
• lt: Lithuanian (based on https://lt.wikipedia.org/wiki/Sąrašas:ISO_639-1_kodai)
• lv: Latvian (based on https://lv.wikipedia.org/wiki/ISO_639-1_kodu_saraksts)
• ms: Malay (based on https://github.com/umpirsky/language-list/blob/master/data/ms/language.json)
• nl: Dutch (based on https://nl.wikipedia.org/wiki/Lijst_van_ISO_639-codes)
• no: Norwegian (based on https://no.wikipedia.org/wiki/Liste_over_ISO_639-1-koder)
• pl: Polish (based on https://pl.wiktionary.org/wiki/Wikis%C5%82ownik:Kody_j%C4%99zyk%C3%B3w)
• pt: Portuguese (European) (based on https://pt.wikipedia.org/wiki/ISO_639)
• ro: Romanian (based on https://ro.wikipedia.org/wiki/Lista_codurilor_ISO_639-1)
• ru: Russian (by professional translator)
• sk: Slovak (based on https://sk.wikipedia.org/wiki/ISO_639)
• sv: Swedish (based on https://sv.wikipedia.org/wiki/ISO_639)
• ta: Tamil (based on https://ta.wikipedia.org/wiki/%E0%AE%90.%E0%AE%8E%E0%AE%9A%E0%AF%81.%E0%AE%93_639-1_%E0%AE%95%E0%AF%81%E0%AE%B1%E0%AE%BF%E0%AE%AF%E0%AF%80%E0%AE%9F%E0%AF%81%E0%AE%95%E0%AE%B3%E0%AF%8D_%E0%AE%AA%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AE%BF%E0%AE%AF%E0%AE%B2%E0%AF%8D)
• th: Thai (based on https://github.com/umpirsky/language-list/blob/master/data/th/language.json)
• uk: Ukrainian (based on https://uk.wikipedia.org/wiki/Список_мовних_кодів_ISO_639)
• vi: Vietnamese (based on https://github.com/umpirsky/language-list/blob/master/data/vi/language.json)
• zh: Chinese (by professional translator)

List of ISO 639-1 codes

Language to Code

1var languages = require("@cospired/i18n-iso-languages");
2console.log("German => " + languages.getAlpha2Code('German', 'en'));
3// German => de
4
5console.log("German => " + languages.getAlpha3TCode('German', 'en'));
6// German => deu
7
8console.log("German => " + languages.getAlpha3BCode('German', 'en'));
9// German => ger

Codes

Convert ISO 639-2 (Alpha-3) to ISO 639-1 (Alpha-2) code

1var languages = require("@cospired/i18n-iso-languages");
2console.log("deu (Alpha-3) => " + languages.alpha3ToAlpha2("deu") + " (Alpha-2)");
3// deu (Alpha-3 T) => de (Alpha-2)
4
5var languages = require("@cospired/i18n-iso-languages");
6console.log("ger (Alpha-3 B) => " + languages.alpha3ToAlpha2("ger") + " (Alpha-2)");
7// ger (Alpha-3 B) => de (Alpha-2)

Convert ISO 639-1 (Alpha-2) to ISO 639-2 (Alpha-3) code

1var languages = require("@cospired/i18n-iso-languages");
2console.log("de (Alpha-2) => " + languages.alpha2ToAlpha3T("de") + " (Alpha-3 T)");
3// de (Alpha-2) => deu (Alpha-3 T)
4
5var languages = require("@cospired/i18n-iso-languages");
6console.log("de (Alpha-2) => " + languages.alpha2ToAlpha3B("de") + " (Alpha-3 B)");
7// de (Alpha-2) => ger (Alpha-3 B)

Get all ISO 639-1 (Alpha-2) codes

1var languages = require("@cospired/i18n-iso-languages");
2console.log(languages.getAlpha2Codes());
3// { 'aa': 'aar', 'ab': 'abk', [...], 'za': 'zha', 'zu': 'zul' }

Get all ISO 639-2 (Alpha-3) codes

1var languages = require("@cospired/i18n-iso-languages");
2console.log(languages.getAlpha3TCodes());
3// { 'aar': 'aa', 'abk': 'ab', [...], 'zha': 'za', 'zul': 'zu' }
4
5var languages = require("@cospired/i18n-iso-languages");
6console.log(languages.getAlpha3BCodes());
7// { 'aar': 'aa', 'abk': 'ab', [...], 'zha': 'za', 'zul': 'zu' }

Validate language code

1var languages = require("@cospired/i18n-iso-languages");
2console.log(languages.isValid("de"), languages.isValid("ger"), languages.isValid("xx")));
3// true, true, false

Contribution

To add a language:

• add a json file under langs/ (in alphabetical order)
• add the language to the data object in enty-node.js at the top (in alphabetical order)
• add language to section Supported languages in README.md (in alphabetical order)
• add language to keywords in package.json (in alphabetical order)
• add language to the "unreleased" section of the changelog
• run npm install && npm run test to make sure that tests are passing
• open a PR on GitHub

Please do not change the version in package.json, package-lock.json or changelog.md.