Getting value from table cell in JavaScript...not jQuery

I can't believe how long this has taken me but I can't seem to figure out how to extract a cell value from an HTML table as I iterate through the table with JavaScript. I am using the following to iterate:

  var refTab=document.getElementById("ddReferences")
  var  ttl;
  // Loop through all rows and columns of the table and popup alert with the value
  // /content of each cell.
  for ( var i = 0; row = refTab.rows[i]; i++ ) {
     row = refTab.rows[i];
     for ( var j = 0; col = row.cells[j]; j++ ) {
        alert(col.firstChild.nodeValue);
     }
  }

What is the correct call I should be putting in to the alert() call to display the contents of each cell of my HTML table? This should be in JS...can't use jQuery.

function GetCellValues() {
    var table = document.getElementById('mytable');
    for (var r = 0, n = table.rows.length; r < n; r++) {
        for (var c = 0, m = table.rows[r].cells.length; c < m; c++) {
            alert(table.rows[r].cells[c].innerHTML);
        }
    }
}

If I understand your question correctly, you are looking for innerHTML:

alert(col.firstChild.innerHTML);

confer below code

<html>
<script>


    function addRow(){
 var table = document.getElementById('myTable');
//var row = document.getElementById("myTable");
var x = table.insertRow(0);
var e =table.rows.length-1;
var l =table.rows[e].cells.length;
//x.innerHTML = "&nbsp;";
 for (var c =0,  m=l; c < m; c++) {
table.rows[0].insertCell(c);
   table.rows[0].cells[c].innerHTML  = "&nbsp;&nbsp;";
}

}




function addColumn(){
       var table = document.getElementById('myTable');
        for (var r = 0, n = table.rows.length; r < n; r++) {
                table.rows[r].insertCell(0);
                table.rows[r].cells[0].innerHTML =  "&nbsp;&nbsp;" ;

        }

    }

function deleteRow() {
    document.getElementById("myTable").deleteRow(0);

}

function deleteColumn() {
   // var row = document.getElementById("myRow");
 var table = document.getElementById('myTable');
 for (var r = 0, n = table.rows.length; r < n; r++) {
    table.rows[r].deleteCell(0);//var table handle 
}
}

</script>
<body>
<input type="button" value="row +" onClick="addRow()" border=0       style='cursor:hand'>
    <input type="button" value="row -" onClick='deleteRow()' border=0 style='cursor:hand'>
    <input type="button" value="column +" onClick="addColumn()" border=0 style='cursor:hand'>
    <input type="button" value="column -" onClick='deleteColumn()' border=0 style='cursor:hand'>

    <table  id='myTable' border=1 cellpadding=0 cellspacing=0>
 <tr id='myRow'>          
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
<tr>          
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>

    </table>



</body>
</html>

I know this is like years old post but since there is no selected answer I hope this answer may give you what you are expecting...

if(document.getElementsByTagName){  
    var table = document.getElementById('table className');
    for (var i = 0, row; row = table.rows[i]; i++) {
    //rows would be accessed using the "row" variable assigned in the for loop
     for (var j = 0, col; col = row.cells[j]; j++) {
     //columns would be accessed using the "col" variable assigned in the for loop
        alert('col html>>'+col.innerHTML);    //Will give you the html content of the td
        alert('col>>'+col.innerText);    //Will give you the td value
        }
      }
    }
}

Getting value from table cell in JavaScript...not jQuery

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