Question 339639 in Jquery Question posted in
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jQuery – select the href in the next td

Sorry if the title doesn’t make sense, hopefully this does:

<tr>
    <td>
        Cell 1
    </td>
    <td>
        <a href='url1'>Hyperlink 1</a>
    </td>
</tr>
<tr>
    <td>
        Cell 2
    </td>
    <td>
        <a href='url2'>Hyperlink 2</a>
    </td>
</tr>

I am trying to set the onClick event for the first td based on the a from the 2nd td.

My best attempt so far is:

$('tr td:first-of-type').attr('onClick', 'window.location = ' + $(this).next('td > a').attr('href'));

That line sets the window.location attribute but returns an undefined location:
<td onclick="window.location = undefined">

Any tips?

Tags:

2

Answers


  1. 0

    I think your approach is almost correct but there is a small issue with the context of $(this) within the .attr() function. You need to use a function callback to correctly reference the element you want. You can simplify the selector to directly target the ‘a’ element within the second ‘td’. Like This:

    $('tr td:first-of-type').click(function() {
    window.location = $(this).next('td').find('a').attr('href');
});
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  2. 0

    Your logical mistake is here:

    $(this).next('td > a')

    Since this will be a td, next('td > a') is trying to find a sibling element a (since td > a will always select an a).

    a though will never be a sibling of td. I know you’re trying to mitigate this by providing the child selector td > a here, but that’s not how it works:

    .next()

    Get the immediately following sibling of each element in the set of matched elements. If a selector is provided, it retrieves the next sibling only if it matches that selector.
    https://api.jquery.com/next/

    Instead, I’d rather use this approach:

    $(this).closest('tr').find('a')

    This approach is a little more robust than

    $(this).next('td').find('a')

    because it won’t fail if you ever insert additional columns or the order of the table cells changes.

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