Handlebars helper interpets string as integer

Question

Context

In handlebars, I want to compare two values and print X or Y depending if they are equal or not. I successfully registered a comparison helper:

private static string GetArgumentValue(object argument)
{   
   if (argument.GetType().Name == "UndefinedBindingResult")
   {   
      return (string) argument.GetType().GetField("Value").GetValue(argument);
   }
    
   return argument.ToString();
}
    
public void RegisterHelper()
{
   Handlebars.RegisterHelper("ifCond", (output, context, arguments) =>
   {
      var value1 = GetArgumentValue(arguments[0]);
      var operation = GetArgumentValue(arguments[1]);
      var value2 = GetArgumentValue(arguments[2]);
      var returnValue1 = GetArgumentValue(arguments[3]);
      var returnValue2 = GetArgumentValue(arguments[4]);
    
      switch (operation)
      {
         case "eq":
            output.Write(value1 == value2 ? returnValue1 : returnValue2);
            break;
         case "ne":
            output.Write(value1 != value2 ? returnValue1 : returnValue2);
            break;
         default:
            throw new Exception("ifCond: Unrecognized operation");
      }
   });
}

And I am using it like this:

'{{ifCond MyData eq 01 X Y}}'

Whats the problem?

MyData is a variable with value 01 This means that comparing MyData to 01 should print X, unfortunately, it prints Y (meaning they are not equal). This is because all of the arguments are of type UndefinedBindingResult except the 3rd one that is integer. That is why comparing MyData (01) to 1 is not equal.

Question: Whats the right way to pass a string to my helper function? Obviously, it interprets the 3rd argument - 01, as an integer and provides it as just 1.

Disclaimer: I realize my explanation is not very good, but my Handlebards knowledge is limited.

Answer 1

To handle a value as a string, just use ", like:

var s = "{{ifCond MyData eq \"01\" X Y}}";

See working example: https://dotnetfiddle.net/7JLLPe

---

And if you need more helpers, you can also checkout this project (which also includes the String.Equal helper method):

https://github.com/Handlebars-Net/Handlebars.Net.Helpers