How to get only rows displayed post-filter?

BLSully

Pre 1.10, there was a function floating around called 'fnGetFilteredData' that would return the rows which matched the current filter. I'm trying to do the same thing so I can total data the user is filtering: e.g. Showing 15 transactions, user filters for "ford" to see transaction total for Fords. I've been poking through the API documentation, but I can't find anything like .rows().filtered() or similar. How do I do this in the new API?