how do I get each row date with multiple columns data

surfing

Link to test case: http://live.datatables.net/surfing/8/edit
Debugger code (debug.datatables.net):
Error messages shown:
Description of problem:

so I learned that such each function loop all rows in one column, like salary is column(5)
table
.column( 5 )
.data()
.each( function ( value, index ) {}

But how do I get multiple columns data in one row,
say , I want to get the age and salary at same time, so I can do some calculation on both variables f(age, salary)
for example, age<65 salary will not be added into total.

thank you.
Oh , I got it, never mind thank you.

$(document).ready( function () {
  var table = $('#example').DataTable();
  
 let  total =0;
     let n=0;
    
 
//$.each( table.$(':input'), function( index ) {
//  alert( $(this).outerHTML );
//});
  
table
     
    .data()
    .each( function ( value , index ) {
  

  
  
    
    total =total + parseFloat(value[5].replace(/\$|,/g, ''));      
       
    if (n<3){
    
      alert(n+ 'total: '+index+' is: '+total + value[3]);
     }
   n +=1;
  
  $('#fieldTotal').val(total);
  $('#fieldrows').val(n);
  
    } );
  
} );