Takes any vector of languages and returns ISO code.
Examples
iso.lang('Adyghe')
#> Adyghe
#> "ady"
iso.lang(c('Adyghe', 'Udi'))
#> Adyghe Udi
#> "ady" "udi"
Takes any vector of languages and returns ISO code.
iso.lang('Adyghe')
#> Adyghe
#> "ady"
iso.lang(c('Adyghe', 'Udi'))
#> Adyghe Udi
#> "ady" "udi"