how can i hide and show the last row ?

zero_cool

hi , i try ti hide /show the last row by call some function.. that what i do

 for(var i=0 ;i < oTable.fnGetData().length ;i ++){
                if (oTable.fnGetData(i)[2].includes("somthing")) {
                    oTable.fnGetData(i)[2].hide();
                   
                }
            }

how can i do it right?
tnx!