Question: how to get row index in datatable using jquery?
Answer: Row index 0 data: var table = $('#example').DataTable(); var data = table.row( 0 ).data(); ... 
Select a single row by id: var table = $('#example').DataTable(); var row = table.row('#row-42'); ... 
Select rows by class name: ... 
Get the data for a row that was clicked upon: ... 
Get data from rows in a jQuery instance: