public function includeExtraScripts(array $keys = array())
    {
        $this->_extraScripts = empty($keys) ? array_keys($this->_confs['extra']) : $keys;
    }
public function includeExtraScripts(array $keys = array())
    {
        $this->_extraScripts = empty($keys) ? array_keys($this->_confs['extra']) : $keys;
    }
public function includeExtraScripts ( array $ keys = array ( ) ) { $ this -> _extraScripts = empty ( $ keys ) ? array_keys ( $ this -> _confs [ 'extra' ] ) : $ keys ; }
Signals which extra scripts are to be included given its keys

@param array $keys extra scripts keys to be included
Signals which extra scripts are to be included given its keys