hugo-toha/layouts/partials/navigators/lang-selector-2.html

{{ $pageURL:= .RelPermalink }}
{{ if site.IsMultiLingual }}
  {{ $pageURL = strings.TrimPrefix (path.Join "/" .Language.Lang) $pageURL }}
{{ end }}

<li class="nav-item dropdown">
    <a class="nav-link dropdown-toggle" href="#" id="languageSelector" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
      {{ $countryCode := partial "helpers/country-code.html" . }}
      <span class="flag-icon flag-icon-{{$countryCode}}"></span>
      {{ site.Language.LanguageName }}
    </a>
    <div class="dropdown-menu" aria-labelledby="languageSelector">
      {{ range .Translations }}
        <a class="dropdown-item nav-link languages-item" href="{{ path.Join "/" (cond (eq .Language.Lang "en") "" .Language.Lang) $pageURL }}">
          {{ $countryCode := partial "helpers/country-code.html" . }}
          <span class="flag-icon flag-icon-{{$countryCode}}"></span>
          {{ .Language.LanguageName }}
        </a>
      {{ end }}
    </div>
</li>