Script execution within JS Debugger Not Working For Scripts

So, I am trying to figure out how to get code to run within the console. It seems like for simple things like 1+2 it works but any functions I have written as a document JS does not work. What am I missing?

For reference, I am splitting some files...

function Split() {

   var totalPages;

   var i;

   var arrNames = [ "SOME ARRAY HERE" ];

   var targetPath  = "/C/Users/SOMEPATH/";

   totalPages = this.numPages;

   try { for (i = 0; i  < totalPages; i++)

         this.extractPages({

            nStart: i,

            cPath: targetPath +arrNames + ".pdf"

         });

        console.println(targetPath +arrNames + ".pdf");

   } catch (e) {

       console.println("Aborted: " + e)

   }

}