export function matchLanguages(languages: string[], acceptLanguages: readonly string[]): string | null { { // const lang = acceptLanguages.map(userLang => languages.find(lang => lang.startsWith(userLang))).filter(v => !!v)[0] // TODO: Support es-419, remove this code if we include spanish country variants const lang = acceptLanguages.map(userLang => languages.find((lang) => { if (userLang.startsWith('es-') && userLang !== 'es-ES') return lang === 'es-419' return lang.startsWith(userLang) })).filter(v => !!v)[0] if (lang) return lang } const lang = acceptLanguages.map((userLang) => { userLang = userLang.split('-')[0]! return languages.find(lang => lang.startsWith(userLang)) }).filter(v => !!v)[0] if (lang) return lang return null }