Helper method for serializing objects to JSON in Razor Views

HtmlHelperExtensions.cs

  public static class HtmlHelperExtensions
    {
        public static MvcHtmlString SerializeToJson(this HtmlHelper helper, string javascriptVariableName,
                                                         object objectToSerialize)
        {
           if (javascriptVariableName.Contains(" "))
                throw new Exception("Invalid JS variable name");
                
            return
                MvcHtmlString.Create(String.Format("var {0}={1};", javascriptVariableName,
                                                   Json.Encode(objectToSerialize)));
        }
    }