How can I handle a JSON result in JavaScript (on MVC)?

I'm using Ext in a MVC project. I wrote a controller, like the code below. How do I handle this JSON reult in my JavaSc开发者_如何学Cript used in my View page?

    public ActionResult Index() 
    {
        List<PriceList> newList = new List<PriceList>
        {
             new PriceList { Number = 1, Price = 24},
             new PriceList { Number = 2, Price = 25},
             new PriceList { Number = 3, Price = 20},
             new PriceList { Number = 4, Price = 18},
        };

        return Json(newList);
    }

You can use jQuery templates. An example is Introducing jQuery Templates 1: First Steps .