I think this script might have an answer in your general direction:

https://indesign.hilfdirselbst.ch/farbe/farben-reduzieren-duplikate-entfernen.html

There is a script that ships with Adobe InDesign called SelectObjects.jsx – run that script and it will display a user interface asking what you want to select. Uncheck what you don’t want to select and run the script, and then all specific items (on a spread only) will be selected.

If you don’t want to uncheck boxes all the time, open the script in a text editor such as text wrangler and look for the following lines of code:

var myRectanglesCheckbox = checkboxControls.add({staticLabel:”&Rectangles”, checkedState:true});
var myEllipsesCheckbox = checkboxControls.add({staticLabel:”&Ellipses”, checkedState:true});
var myPolygonsCheckbox = checkboxControls.add({staticLabel:”&Polygons”, checkedState:true});
var myGraphicLinesCheckbox = checkboxControls.add({staticLabel:”&Graphic Lines”, checkedState:true});
var myTextFramesCheckbox = checkboxControls.add({staticLabel:”&Text Frames”, checkedState:true});
var myGroupsCheckbox = checkboxControls.add({staticLabel:”G&roups”, checkedState:true});
var myImagesCheckbox = checkboxControls.add({staticLabel:”&Images”, checkedState:true});
var myPDFsCheckbox = checkboxControls.add({staticLabel:”P&DFs”, checkedState:true});
var myEPSsCheckbox = checkboxControls.add({staticLabel:”EP&Ss”, checkedState:true});

to make any checkbox unchecked, change the checkedState:true to checkedState:false

OK, that’s not what’s happening here when I test on my Mac, the script works as intended.

My suggestion would be to bring in the desired styles first from a document that contains the styles you need, and then run the code you have. There is a script that will import all styles, master pages etc that might help – go to https://lf.corullon.com.br/scripts_id_lfc/index_enus.html and look for “byLFC_import what you want”

While my earlier post does comment about the length of the code you have, it will still work and shouldn’t present any issues.

As my original post says, “Please understand that writing complete scripts is the lifeblood of javascripters, so asking for a complete script is usually a task that a scripter would be paid for”.

That said, I’m not writing the complete script for you, but instead telling you where the answer lies – in Jongware’s post in InDesignsecrets. Your original post does say “any help would be appreciated”. Jongware’s article will certainly answer your question as well as future table issues.

I did give you the first parts of the script that are from the article as not only is it in the public domain, it’s on indesignsecrets. Those portions are: to differentiate between every table and the table the cursor is in; and how to apply a table style to the selected table.

(second part of my original answer – forums giving me grief):

app.doScript(checkUserSelection, ScriptLanguage.JAVASCRIPT, undefined, UndoModes.ENTIRE_SCRIPT, “Process Table”);

function checkUserSelection ()
{
var a_table = checkWhichTable();
if (a_table == null)
{
if (confirm(“No table selected. Do you want to process all tables?”) == false)
return;
allTables = app.activeDocument.stories.everyItem().tables.everyItem().getElements();
for (aTable=0; aTable < allTables.length; aTable++) { processTable (allTables[aTable]); } } else { processTable (a_table); } }

No, Data Merge won’t work from an indb. The file would need to be one complete INDD file.

I’ve written a script that’s available for free on my website that will allow you to export the individual records to their recordnames – have a look at the script in action:

Data Merge from InDesign to unique filenames – now a reality

Try this script from Roland Dreger: https://www.rolanddreger.net/de/276/fotobuch-mit-adobe-indesign/# – works with pdfs

There are also some good books that I have as resources:
Automating Adobe InDesign CS4 with Extendscript by Shirley W Hopkins (ISBN 9781448637591)
InDesign CS5 Automation Using XML & Javascript by Grant Gamble (ISBN 9781460915387)
InDesign automatisieren: Keine Angst vor Skripting, GREP & Co. (in German, ISBN 9783864902352)