Classes/Utility/ExtensionUtility.php
public static function locallangFolder(string $extensionKey, string $prefix = 'LLL:EXT:'): string {
    return self::languageFolder($extensionKey, $prefix);
  }
public static function locallangFolder(string $extensionKey, string $prefix = 'LLL:EXT:'): string {
    return self::languageFolder($extensionKey, $prefix);
  }
public static function locallangFolder ( string $ extensionKey , string $ prefix = 'LLL:EXT:' ) : string { return self :: languageFolder ( $ extensionKey , $ prefix ) ; }
Gets the locallang folder from an extension key.

Alias for the `languageFolder` function with `LLL:EXT:` as prefix.

@param string $extensionKey The extension key
@param string $prefix The optional prefix, defaults to `LLL:EXT:`
@return string The locallang folder
Gets the locallang folder from an extension key .