Leveraging jQuery for selecting columns within table groups

This is a snippet of my table columns that I'm trying to target. Take a look at the following code:

<tr>    
<th colspan="2">
</th>
</tr>
<tr>
<td></td><td></td>
</tr>
<tr>
<td colspan="2"></td>
</tr>

I've been attempting to select the entire large column without success using different methods. If anyone can offer some guidance, it would be greatly appreciated.

Answer №1

it's going to happen

$('th[colspan="2"],td[colspan="2"]')

Answer №2

If you are aware of the column number, for example, the 3rd column, then it can be implemented as:

$("table td:nth-child(3), table th:nth-child(3)")

Alternatively,

If you have the flexibility to modify the markup, you can do:

<tr>    
<th colspan="2" class="bigcol">
</th>
</tr>
<tr>
<td class="bigcol"></td><td></td>
</tr>
<tr>
<td colspan="2" class="bigcol"></td>
</tr>

$(".bigcol").hide()

Answer №3

This piece of advanced jQuery code does the job effectively. It searches for a th and all the td elements with a specific colspan (although it may not work perfectly if there are two large tds in a row). Additionally, it hides the necessary number of td elements with a colspan of 1. Check out this demonstration.

var colWidth = 2;
var position = $("th[colspan=" + colWidth + "]").prevAll().length;
$("th[colspan=" + colWidth + "]").hide();
$("tr").each(function() {
    if ($(this).find("th").length !== 0) {
        return;
    }
    if ($(this).find("td[colspan=" + colWidth + "]").length !== 0) {
        $(this).find("td[colspan=" + colWidth + "]").hide();
        return;
    }
    for (var i = 1; i <= colWidth; i++) {
        $(this).find("td:nth-child(" + (position + i) + ")").hide();
    }
});

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