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const LANGUAGES_LIST = require('./data.js');
const LANGUAGES = {};
const LANGUAGES_BY_NAME = {};
const LANGUAGE_CODES = [];
const LANGUAGE_NAMES = [];
const LANGUAGE_NATIVE_NAMES = [];
for (const code in LANGUAGES_LIST) {
const { name, nativeName } = LANGUAGES_LIST[code];
LANGUAGES[code] =
LANGUAGES_BY_NAME[name.toLowerCase()] =
LANGUAGES_BY_NAME[nativeName.toLowerCase()] =
{ code, name, nativeName };
LANGUAGE_CODES.push(code);
LANGUAGE_NAMES.push(name);
LANGUAGE_NATIVE_NAMES.push(nativeName);
}
module.exports = class ISO6391 {
static getLanguages(codes = []) {
return codes.map(code =>
ISO6391.validate(code)
? Object.assign({}, LANGUAGES[code])
: { code, name: '', nativeName: '' }
);
}
static getName(code) {
return ISO6391.validate(code) ? LANGUAGES_LIST[code].name : '';
}
static getAllNames() {
return LANGUAGE_NAMES.slice();
}
static getNativeName(code) {
return ISO6391.validate(code) ? LANGUAGES_LIST[code].nativeName : '';
}
static getAllNativeNames() {
return LANGUAGE_NATIVE_NAMES.slice();
}
static getCode(name) {
name = name.toLowerCase();
return LANGUAGES_BY_NAME.hasOwnProperty(name)
? LANGUAGES_BY_NAME[name].code
: '';
}
static getAllCodes() {
return LANGUAGE_CODES.slice();
}
static validate(code) {
return LANGUAGES_LIST.hasOwnProperty(code);
}
}
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