answer for http://stackoverflow.com/questions/4230055/process-client-side-array-in-krl-raised-to-kynetx-app

pass-array-from-client-to-kns.krl

ruleset a60x442 {
  meta {
    name "array-passing-test"
    description <<
      array-passing-test
    >>
    author "Mike Grace"
    logging on
  }

  rule start_your_engines {
    select when pageview ".*"
    {
      notify("Running","...sending array to KNS") with sticky = true;
      emit <|
        app = KOBJ.get_application("a60x442");
        var numbers = [1,2,3,4,5];
        nums = JSON.stringify(numbers);
        app.raise_event("process_array", {"numbers":nums});
        $K("div.KOBJ_message").append("<br/>"+nums);
      |>;
    }
  }
  
  rule process_array {
    select when web process_array
    foreach event:param("numbers").decode() setting (number)
    {
      notify("number",number) with sticky = true;
    }
  }
  

}