: Automatically apply table cell style based on whether the cell is empty or has content I have a document that is frequently modified with a lot of tables. There are two table cell styles used

@Ann6370331

You nearly got it right.
- You need to loop the cells of the table with an iterator.
- Also while(len-->0) is not a JavaScript expression.
- To apply a style you need to assign it. See the code below.

Tested on macOS 10.12.1 in InDesign 2017

/* global app $ exit */

// stop the execution when nothing is selected
if(app.selection.length < 1) {
$.writeln('no selection');
exit();
}
var sel = app.selection[0];
// stop the execution when there is no table
if(sel.hasOwnProperty('tables') === false) {
$.writeln('no tables');
exit();
}
var table = sel.tables[0]; // get the selected table

// great we made it here - so there must be a table in the selection
// loop all the cells in that first table in the selction
for(var i = 0; i < table.cells.length; i++) {
// check if the content is an empty string
if (table.cells[i].contents === '') {
// set the appliedCellStyle to the CellStyle named "foo"
// if the styles don't exist this will through an error
table.cells[i].appliedCellStyle = 'foo';
} else {
// if the cells content is not an empty string
// set the appliedCellStyle to the CellStyle named "bah"
// if the styles don't exist this will through an error
table.cells[i].appliedCellStyle = 'bah';
}
}

// we are done

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