public function addAfter($file1, $file2, $params = 'footer', $onUnknownExtension = false)
    {
        RoumenAsset::addAfter($this->elixir($file1), $this->elixir($file2), $params, $onUnknownExtension);
    }
public function addAfter($file1, $file2, $params = 'footer', $onUnknownExtension = false)
    {
        RoumenAsset::addAfter($this->elixir($file1), $this->elixir($file2), $params, $onUnknownExtension);
    }
public function addAfter ( $ file1 , $ file2 , $ params = 'footer' , $ onUnknownExtension = false ) { RoumenAsset :: addAfter ( $ this -> elixir ( $ file1 ) , $ this -> elixir ( $ file2 ) , $ params , $ onUnknownExtension ) ; }
Add new asset after another asset in its array.

@param string       $file1
@param string       $file2
@param string|array $params
@param bool         $onUnknownExtension

@return void
Add new asset after another asset in its array .