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Groups > comp.lang.javascript > #17971

Re: count table rows

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jr於 2012年12月8日星期六UTC+8上午3時40分38秒寫道：
> On Friday, December 7, 2012 10:27:48 AM UTC-8, jr wrote:
> 
> The error in firefox is:
> 
> TypeError: document.getElementById("table") is null
After closing and properly nesting the original markup, it works as expected.
Not a script problem.
-----
<!DOCTYPE html> 
<head> 
        <meta charset="utf-8" /> 
        <title>To-Dos</title> 
</head> 
<body> 

<table id="table"> 
<tr> 
<td> this</td> <td> is</td> <td> a test</td> 
</tr> 
<td>of</td><td> counting<td>table</td><td>rows</td> 
</tr>
</table>

<script type="text/javascript">
    window.addEventListener("load", 
        function(){ 
            var todocount = document.getElementById('table').rows.length; 
            console.log(todocount); 
            mydiv = document.getElementById("todocount"); 
            mydiv.innerHTML = todocount;
        },false);
</script>

<div id="todocount"></div>

</body> 
</html>

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count table rows jr <jlrough@yahoo.com> - 2012-12-07 10:27 -0800
  Re: count table rows Stefan Weiss <krewecherl@gmail.com> - 2012-12-07 19:48 +0100
  Re: count table rows "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2012-12-07 20:56 +0200
  Re: count table rows jr <jlrough@yahoo.com> - 2012-12-07 11:23 -0800
    Re: count table rows "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2012-12-07 21:38 +0200
      Re: count table rows jr <jlrough@yahoo.com> - 2012-12-07 13:10 -0800
    Re: count table rows Christoph Becker <cmbecker69@gmx.de> - 2012-12-07 21:44 +0100
      Re: count table rows jr <jlrough@yahoo.com> - 2012-12-07 12:57 -0800
        Re: count table rows jr <jlrough@yahoo.com> - 2012-12-07 13:08 -0800
        Re: count table rows Christoph Becker <cmbecker69@gmx.de> - 2012-12-07 22:56 +0100
          Re: count table rows JRough <janis.rough@gmail.com> - 2012-12-07 16:28 -0800
            Re: count table rows Christoph Becker <cmbecker69@gmx.de> - 2012-12-08 03:12 +0100
  Re: count table rows jr <jlrough@yahoo.com> - 2012-12-07 11:40 -0800
    Re: count table rows Luc Yen <luc@goal.tw> - 2013-01-05 16:20 -0800
  Re: count table rows Dr J R Stockton <reply1249@merlyn.demon.co.uk.invalid> - 2012-12-09 16:37 +0000
  Re: count table rows Matt McDonald <matt@fortybelow.ca> - 2012-12-13 11:41 -0500

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