Get href attribute on jQuery

Question

I have some table rows

<tr class="b_row">
    <td>
        <div class="cpt">
            <h2>
                <a href="/ref/ref/1.html">example</a>
            </h2>
        </div>
    </td>
</tr>

<!--more elements -->

<tr class="b_row">
    <td>
        <div class="cpt">
            <h2>
                <a href="/ref/two/23.html">example N</a>
            </h2>
        </div>
    </td>
</tr>

I need to get hyperlinks in attribute. I use this script

function openAll()
{
    $("tr.b_row").each(function(){
    var a_href = $('div.cpt').find('h2 a').attr('href');
    alert ("Href is: " + a_href);
}

Problem: variable a_href is always / ref/ref/1.html

Answer 1

add a reference to this, which refers to your b_row:

$("tr.b_row").each(function(){
    var a_href = $( this ).find('div.cpt h2 a').attr('href');
    alert ("Href is: "+a_href);
});

Answer 2

Use $(this) for get the desire element.

function openAll()
{
     $("tr.b_row").each(function(){
        var a_href = $(this).find('.cpt h2 a').attr('href');
        alert ("Href is: "+a_href);
     });
}

Answer 3

var a_href = $('div.cpt').find('h2 a').attr('href');

should be

var a_href = $(this).find('div.cpt').find('h2 a').attr('href');

In the first line, your query searches the entire document. In the second, the query starts from your tr element and only gets the element underneath it. (You can combine the finds if you like, I left them separate to illustrate the point.)

Answer 4

In loop you should refer to the current procceded element, so write:

var a_href = $(this).find('div.cpt h2 a').attr('href');

Answer 5

Very simply, use this as the context: http://api.jquery.com/jQuery/#selector-context

var a_href = $('div.cpt', this).find('h2 a').attr('href');

Which says, find 'div.cpt' only inside this

Answer 6

Use this:

$(function(){
    $("tr.b_row").each(function(){
    var a_href = $(this).find('div.cpt h2 a').attr('href');
    alert ("Href is: "+a_href);

    });
});

See a working demo: http://jsfiddle.net/usmanhalalit/4Ea4k/1/