What is the best way to enter configuration parameters in Javascript in an MVC application?

Question

What is the best way to enter configuration parameters in Javascript in an MVC application? I have seen this done using ASP.NET web forms, but am not sure how to do this with MVC.

@using System.Configuration ... var checkTimer = @ConfigurationManager.AppSettings["CheckTimer"]; 

In Web.config:

 <appSettings> <!-- Polling timer to check for alerts --> <add key="CheckTimer" value="10000"/> </appSettings> 

But in my processed output, I get the following:

 var checkTimer = ; 

Answer 1

 var checkTimer = @Html.Raw(Json.Encode(ConfigurationManager.AppSettings["CheckTimer"])); 

Answer 2

Check out the Javascript serializer:

http://msdn.microsoft.com/en-us/library/system.web.script.serialization.javascriptserializer.aspx

Answer 3

If this is not too strange, you can have a hidden variable and then access it in javascript.