Embedding JavaScript engine into .NET [closed]

Answer 1

I came up with a much simpler solution instead.

I built a .dll file using Javascript and then compiled it using the Javascript compiler which is available in a VS2013 developer command prompt.

Once we have the .dll we simply add it to the \Support folder and then referenced it in the project which needed to eval Javascript statements.

Detailed Steps to create a .dll:

1. Create a file in Notepad with only these contents:

   class EvalClass { function Evaluate(expression: String) { return eval(expression); } } 
   

2. Save the file as C:\MyEval.js

3. Open a VS2005 Command Prompt (Start, Programs, VS2005, VS2005 Tools)

4. Type Cd\ to get to C:\

5. Type

   jsc /t:library C:\MyEval.js
   

6. A new file is created named MyEval.dll.

7. Copy MyEval.dll to the project and reference it (also reference Microsoft.Jscript.dll).

8. Then you should be able to call it like this:

   Dim jScriptEvaluator As New EvalClass
   Dim objResult As Object
   objResult = jScriptEvaluator.Evaluate(“1==1 && 2==2”)
   

objResult is True.