如果链接没有href，隐藏父TR？

Question

I current have this:

<table>
    <tbody>
        <tr>
            <td>
            <a href="http://www.google.com">Visit Website</a>
            </td>
        </tr>
        <tr>
            <td>
            <a href="">Visit Website</a>
            </td>
        </tr>
        <tr>
            <td>
            <a href="http://www.google.com">Visit Website</a>
            </td>
        </tr>
        <tr>
            <td>
            <a href="">Visit Website</a>
            </td>
        </tr>
    </tbody>
</table>

I need some javascript that will:
if <a> has no href (href="") then hide the TR that wraps it.

How do I achieve this using javascript?

Answer 1

You can use attribute equals selector for getting a tag with href="" and then get tr by closest()

 $('a[href=""]').closest('tr').hide(); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <table> <tbody> <tr> <td> <a href="http://www.google.com">Visit Website</a> </td> </tr> <tr> <td> <a href="">Visit Website</a> </td> </tr> <tr> <td> <a href="http://www.google.com">Visit Website</a> </td> </tr> <tr> <td> <a href="">Visit Website</a> </td> </tr> </tbody> </table> 

---

Or you can use :has() or has() and attribute equals selector .

 $('tr:has(a[href=""])').hide(); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <table> <tbody> <tr> <td> <a href="http://www.google.com">Visit Website</a> </td> </tr> <tr> <td> <a href="">Visit Website</a> </td> </tr> <tr> <td> <a href="http://www.google.com">Visit Website</a> </td> </tr> <tr> <td> <a href="">Visit Website</a> </td> </tr> </tbody> </table> 

---

FYI :

If you want to select a tag without href attribute then you can use :not() selector, eg:

 $('a[href=""],a:not(a[href])').closest('tr').hide(); 

Answer 2

If you want to check for only href=""

simply try

$('a[href=""]').parent().parent().hide();

or

$('a[href=""]').closest("tr").hide();

If you also want to check for only href="" or no href attribute given

simply try

$('a[href=""],a:not([href])').parent().parent().hide();

or

$('a[href=""],a:not([href])').closest("tr").hide();

Answer 3

https://jsfiddle.net/现在看看它的工作情况，请检查