将多个TD插入表中间

Question

I have a table with 2-4 columns and 9 rows. Some of the very right columns have a text (abc), some have an image, some have both and some may have neither of them.

I want to copy the contents of the 2nd column into 3 newly created columns, but insert them in the middle (before abc and the image, if applicable). So that it looks like that:

This approach:

$("table td:nth-child(2) [id$=2]").each(function(i) {
  var $newCell = $(this).wrap('<td></td>').parent();
  var $newRow = $("table td:nth-child(2) [id$=1]").eq(i).parents('tr');
  $(this).parents('tr').remove();
  if ($newRow.find("td:contains('abc')").index() > -1) {
    $newRow.find("td:contains('abc')").before($newCell);
  } else if ($newRow.find("td.img").index() > -1) {
    $newRow.find("td:contains('img')").before($newCell);
  } else {
    $newRow.find("td:contains('img')").before($newCell);
  }
});

$("table td:nth-child(2) [id$=3]").each(function(i) {
  var $newCell = $(this).wrap('<td></td>').parent();
  var $newRow = $("table td:nth-child(2) [id$=1]").eq(i).parents('tr');
  $(this).parents('tr').remove();
  if ($newRow.find("td:contains('abc')").index() > -1) {
    $newRow.find("td:contains('abc')").before($newCell);
  } else if ($newRow.find("td.img").index() > -1) {
    $newRow.find("td:contains('img')").before($newCell);
  } else {
    $newRow.find("td:contains('img')").before($newCell);
  }
});

Produces the following result:

FIDDLE .

Answer 1

To achieve this you can loop over each third row using :nth-child , appending the required td from each to the first row in the set. From there you can remove() the unneeded rows, something like this:

for (var i = 0; i < $('table tr').length / 3; i++) {
    var $rows = $('table tr:nth-child(3n+' + i + ')');
    $rows.not(':first').addClass('remove').find('td:eq(1)').insertAfter($rows.first().find('td:eq(1)'));
}
$('table .remove').remove();

Updated fiddle