asp.net-mvc: javascript caching

Question

I'm thinking whether it makes sense in order to increase the speed of the website to do some strategy of caching the js files that are being included ?

one idea that I have is to do something like this:

[OutputCache(Location = OutputCacheLocation.Any, Duration = 3600)]
public JsController : Controller
public ActionResult JQuery()
{
//I would have a ascx with the entire jquery script inside
return View();
} 

and on the site.master:

<%=Html.RenderAction("JQuery","JsController");

Answer 1

that's not necessary. You can specify cache strategy for JS (and any static files) on the web.config and on the IIS.

For jQuery in particular, you could reference the library from google CDN.

http://code.google.com/apis/ajaxlibs/documentation/#jquery

Answer 2

The client browser already caches included javascript files. For standard libraries such as jQuery you could use a CDN as chances are it is already cached in the client browser.