SSJS DE Search

<script runat="server">
  /*Code provided as is without warranty - make sure you understand what this code does before using it - use at your own risk*/
  Platform.Load("Core","1");
  try{
    var dename = Request.GetQueryStringParameter("de");;
    var prox = new Script.Util.WSProxy();
    var cols = ["Name","CustomerKey","CategoryID"];
    var filter = {
      Property: "Name",
      SimpleOperator: "like",
      Value: dename
    };
    var desc = prox.retrieve("DataExtension", cols, filter);
    for (i = 0; i < desc.Results.length; i++) {      
      var findcatid = desc.Results[i].CategoryID;
      var folderpath = desc.Results[i].Name;
      
      do {
        var colsb = ["Name","ID","ParentFolder.ID"];
        var filterb = {
          Property: "ID",
          SimpleOperator: "equals",
          Value: findcatid
        };
        var descb = prox.retrieve("DataFolder", colsb, filterb);
        findcatid = descb.Results[0].ParentFolder.ID;
        folderpath = descb.Results[0].Name + " > " + folderpath;
      }
      while (findcatid != 0);
      Write(Found: "+folderpath+'<br>');
    }
  } 
  catch(error) {
    Write('Message: '+ error);
  }
</script>