symfony - How to return Javascript in Symfony2? -

like on ruby on rails, can return javascript prerendering dynamically update client site through ajax.

how return javascript when calling routes in symfony2?

for example, when calling updateitemappearanceaction through \item\{itemid}\update_appearance, return javascript file updateitemappearance.js.twig, array("item"->$item)?

thank much!

you pass rendered view response object , set header of updateitemappearanceaction text/javascript.

<?php  namespace ownerbuildercentre\corebundle\controller;  use symfony\bundle\frameworkbundle\controller\controller; use sensio\bundle\frameworkextrabundle\configuration\route; use symfony\component\httpfoundation\request; use symfony\component\httpfoundation\response;  // example controller.   class defaultcontroller extends controller  {     /**      * @route("/updateitemappearance.js", name="default_update_item_appearance_js")      */     public function updateitemappearanceaction()     {         $optionalparams = array('some'=>'param');         $response = new response($this->renderview('appbundle:default:updateitemappearance.js.twig',$optionalparams));         $response->headers->set('content-type','text/javascript');         return $response;     } } 

so now, javascript write in updateitemappearance.js.twig file can included javascript file via usual means.

<script src="/updateitemappearance.js"></script> 

or using twig path helper.

<script src="{{ path('default_update_item_appearance_js') }}"></script>