Is there a way to format numbers without knowing column indices ahead of time?

I'm relatively new to DataTables and having trouble determining if it's possible to render all unformatted numbers to comma delimeted format (e.g. 1000000 -> 1,000,000) without knowing the table layout before hand. The reason I ask is because I'm using datatables to show the results of a number of different user selected queries and writing custom formats for each different query would be very tedious.

Thanks!