Question

I have two tables on my html page with exact same data but there may be few difference which need to be highlighted.
I and using the below Javascript but seems innerHTML does not work as expected-

function CompareTables()
{
var table1 = document.getElementById("table1")
var table2 = document.getElementById("table2")



for(var i=1; i < table1.rows.length; i++)
{
    for(var j=1; j < table2.rows.length; j++){
        var tab1Val = table1.rows[i].cells[0].innerHTML;
        var tab2Val = table2.rows[j].cells[0].innerHTML;
        alert(tab1Val.toUpperCase()+"----"+tab2Val.toUpperCase());

        var changes =RowExists(table2,tab1Val);

        if(!changes[0])
        {
        table1.rows[i].style.backgroundColor = "red";
        instHasChange = true;
        }
}
 function RowExists(table,columnValue)
{
 var hasColumnOrChange = new Array(2);
 hasColumnOrChange[0] = false;
  for(var i=1; i < table.rows.length; i++)
 {

 if(table.rows[i].cells[0].innerHTML == columnValue) /*** why these two does not match**/
 {
   hasColumnOrChange[0] = true;
  }
 return hasColumnOrChange;
}
}

Please suggest what wrong here.
(table.rows[i].cells[0].innerHTML == columnValue) never returns true even if all values same.

Answer 1

Try and use Jquery’s method .text

Depending on the browser(Firefox and Chrome’s) innerHTML does not work

JQuery takes care of that issue for you.