drphrozen/Handlers.js

## _Master.cshtml
<body data-controller-and-action="@ViewContext.GetControllerAndActionAsJson()">

## Handlers.js
// using jQuery
// NS is just some global namespace, replace as you see fit
NS = {
  init: function() {
    var mvcContext = $('body').data('controller-and-action');
    NS.Context.controller = mvcContext.controller.toLowerCase();
    NS.Context.action = mvcContext.action.toLowerCase();

    var callIfFunction = function(arg) { if ($.isFunction(arg)) { arg(); } };

    // execute __global__ first, then the controller specific function and at last the action specific function

    callIfFunction(NS.Handlers.__global__);

    var controller = NS.Handlers[NS.Context.controller];
    if(!controller) return;
    callIfFunction(controller.init);

    var action = controller[NS.Context.action];
    if(!action) return;
    callIfFunction(action.init);
  }
};

NS.Context = {
  controller: null,
  action: null
};

// now define which function are to be executed for each scope
NS.Handlers = {
  __global__: function () {
    // global init functions
  },
  home: {
    init: function() {
    },
    index: {
      init: function() {
      }
    }
  },
  account: {
    // and so on
  }
}

// load everything when dom has loaded
$(NS.init);

## ViewContextExtensions.cs
public static class ViewContextExtensions
{
  public static string GetControllerAndActionAsJson(this ViewContext viewContext)
  {
    var controller = viewContext.Controller;
    if(controller == null) return "{}";
    var valueProvider = controller.ValueProvider;
    if(valueProvider == null) return "{}";
    var actionName = valueProvider.GetValue("action");
    var controllerName = valueProvider.GetValue("controller");
    return Json.Encode(new
    {
      controller = controllerName == null ? null : controllerName.RawValue as string,
      action = actionName == null ? null : actionName.RawValue as string
    });
  }
}
	// using jQuery
	// NS is just some global namespace, replace as you see fit
	NS = {
	init: function() {
	var mvcContext = $('body').data('controller-and-action');
	NS.Context.controller = mvcContext.controller.toLowerCase();
	NS.Context.action = mvcContext.action.toLowerCase();

	var callIfFunction = function(arg) { if ($.isFunction(arg)) { arg(); } };

	// execute __global__ first, then the controller specific function and at last the action specific function

	callIfFunction(NS.Handlers.__global__);

	var controller = NS.Handlers[NS.Context.controller];
	if(!controller) return;
	callIfFunction(controller.init);

	var action = controller[NS.Context.action];
	if(!action) return;
	callIfFunction(action.init);
	}
	};

	NS.Context = {
	controller: null,
	action: null
	};

	// now define which function are to be executed for each scope
	NS.Handlers = {
	__global__: function () {
	// global init functions
	},
	home: {
	init: function() {
	},
	index: {
	init: function() {
	}
	}
	},
	account: {
	// and so on
	}
	}

	// load everything when dom has loaded
	$(NS.init);
	public static class ViewContextExtensions
	{
	public static string GetControllerAndActionAsJson(this ViewContext viewContext)
	{
	var controller = viewContext.Controller;
	if(controller == null) return "{}";
	var valueProvider = controller.ValueProvider;
	if(valueProvider == null) return "{}";
	var actionName = valueProvider.GetValue("action");
	var controllerName = valueProvider.GetValue("controller");
	return Json.Encode(new
	{
	controller = controllerName == null ? null : controllerName.RawValue as string,
	action = actionName == null ? null : actionName.RawValue as string
	});
	}
	}