MVC3: Combine JavaScript files

A nice tool on codeplex to combine and minifier several JavaScript files:

Combres - WebForm & MVC Client-side Resource Combine Library – Home

• Open the Package Manager Console (Tools > Library Package Manager > Package Manager Console)
• In the command window:
  • If you work with ASP.NET MVC: enter Install-Package Combres.Mvc
  • If you work with ASP.NET WebForm: enter Install-Package Combres

Register Route
This step is only necessary for ASP.NET 3.5 users. ASP.NET 4.0 users can skip to the next step. This step is necessary because there's currently no way to generate/transform/reference different code/config/assemblies for different .NET runtimes with NuGet.

• Delete the generated file AppStart_Combres.cs
• Remove the reference to the assembly WebActivator
• Open global.asax code-behind file
  • Import Combres namespace, i.e. using Combres;
  • Add this to the first line of either RegisterRoutes() or Application_Start(): RouteTable.Routes.AddCombresRoute("Combres");

Modify Combres.xml

• Open App_Data/Combres.xml (this should be auto-created when you install the Combres NuGet package)
• Add/remove resource sets, resources etc. as per your need. See this article for more information.

Reference to Combres' resource sets in view

• Open any view page (e.g. master page) which need to reference JS/CSS resource sets defined in Combres.xml
• Add the followings:

<%= WebExtensions.CombresLink("siteCss") %>  
<%= WebExtensions.CombresLink("siteJs") %>