try {
    throw new Error(35,"null object, call your vendor");
  } 
  catch(e) {
    print("e is: " + e)
    print("e.number is: " + (e.number & 0xFFFF));
    print("e.description is: " + e.description);
    print("e.name is: " + e.name);
    print("e.message is: " + e.message);
  }

Notice that we bit-anded the number property with the 16-bit all-one word. The higher order word may contain different information such as the facility code. The Error number property is saved in the lower 16-bit word.

You should also take notice that Error is not a .NET framework type. If you need to share your JScript .NET module with other languages, you'd better use the System.Exception type.

Put the example above in a file, say error.js, compile and run it. You should get the following Command Prompt window:

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