Create array using script snap

You need to define arraylist.
I often get confused between datatypes when using python on SnapLogic which is jython.
I am assuming javascript is also using JSR engine which is different than traditional javascript.
If it is possible I would highly recommend using python script instead of JavaScript.

// Ensure compatibility with both JDK 7 and 8 JSR-223 Script Engines
try { load(“nashorn:mozilla_compat.js”); } catch(e) { }

// Import the interface required by the Script snap.
importPackage(com.snaplogic.scripting.language);

// Import the Java utility classes.
importPackage(java.util);

/**

• Create an object that implements the methods defined by the “ScriptHook”

• interface. We’ll be passing this object to the constructor for the

• ScriptHook interface.
  /
  var impl = {
  /

  • These variables (input, output, error, log) are defined by the
  • ExecuteScript snap when evaluating this script.
    */
    input : input,
    output : output,
    error : error,
    log : log,

  /**

  • The “execute()” method is called once when the pipeline is started

  • and allowed to process its inputs or just send data to its outputs.

  • Exceptions are automatically caught and sent to the error view.
    */
    execute : function () {
    this.log.info(“Executing Transform Script”);
    while (this.input.hasNext()) {
    try{
    // Read the next document, wrap it in a map and write out the wrapper
    var doc = this.input.next();
    var wrapper = new java.util.HashMap();
    var out = new java.util.ArrayList();
    out.add(‘a’)
    out.add(‘b’)
    this.output.write(doc, out);
    this.log.info(“Transform Script finished”);

     }
     catch(err) {
         var wrapper = new java.util.HashMap();
         wrapper.put("errorMsg", err);
         this.log.error(err);
         this.error.write(wrapper);
     }
    

    }
    }
    };

/**

• The Script Snap will look for a ScriptHook object in the “hook”
• variable. The snap will then call the hook’s “execute” method.
  */
  var hook = new com.snaplogic.scripting.language.ScriptHook(impl);

Happy coding!