Question

Javascript iterate table rows and then the cells for each row

Asked by: Peewee

Hi There,
I need to iterate a html table, first by iterating each row and then by iterating each cell within the selected row as I must do some processing at tye start of each row:
var tr = document.getElementsByName('MyTable').rows;

how do i iterate the rows and then the cells of each row - i've tried the below though it causes a js error
for(i = 0,  n=tr.length; i < n; i++) {
alert("row ");
 }
any ideas?

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Asked On
2008-08-28 at 08:00:25ID23685748
Tags

javascript

Topics

JavaScript

,

Scripting Languages

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Answers

 

by: nivlamPosted on 2008-08-28 at 08:05:36ID: 22335746

This should get you started:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <script type="text/javascript">
    function go() {
      var tr = document.getElementById('tbl').rows;
      var td = null;
      
      for (var i = 0; i < tr.length; ++i) {
        // Do whatever you want with each ROW here.
        
        td = tr[i].cells;
        for (var j = 0; j < td.length; ++j) {
          // Do whatever you want for each CELL here.
          alert(td[j].innerHTML);
        }        
      }      
    }
  </script>
</head>
<body onload="javascript:go()">
  <table id="tbl">
    <tr>
      <td>Cell 1</td>
      <td>Cell 2</td>
      <td>Cell 3</td>
    </tr>
    <tr>
      <td>Cell 4</td>
      <td>Cell 5</td>
      <td>Cell 6</td>
    </tr>
    <tr>
      <td>Cell 7</td>
      <td>Cell 8</td>
      <td>Cell 9</td>
    </tr>
  </table>
</body>
</html>

                                              
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