protected function defineJavaScript(NodeBuilder $saNode)
    {
        $saNode
            ->arrayNode('javascript')
                ->children()
                    ->arrayNode('files')
                        ->prototype('scalar')->end()
                    ->end()
                ->end()
            ->end();
    }
protected function defineJavaScript(NodeBuilder $saNode)
    {
        $saNode
            ->arrayNode('javascript')
                ->children()
                    ->arrayNode('files')
                        ->prototype('scalar')->end()
                    ->end()
                ->end()
            ->end();
    }
protected function defineJavaScript ( NodeBuilder $ saNode ) { $ saNode -> arrayNode ( 'javascript' ) -> children ( ) -> arrayNode ( 'files' ) -> prototype ( 'scalar' ) -> end ( ) -> end ( ) -> end ( ) -> end ( ) ; }
Defines the expected configuration for the JavaScript.

@param $saNode \Symfony\Component\Config\Definition\Builder\NodeBuilder
Defines the expected configuration for the JavaScript .