Jquery: select a child div at its index inside a parent div

If I have:

<div id='parent'> 
  <table> 
        <tr> 
            <td> 
                <div id='child1'></div> 
            </td> 
        </tr> 
        <tr> 
             <td> 
                <div id='child2'></div> 
             </td> 
        </tr> 
    </table>
 </div> 

I tried: $('#parent> table > tr:eq(1) > div');

I would like to select a certain child div at its index. For example, I would like to select the second child div child2. A trivial solution is:

var div2 = $('#child2');

But I would rather like to do so with the parent div:

var div2 = $('#parent div')...get(1); // 1 is the index.

W开发者_Python百科ould this be possible?

You can do it using the :eq() selector like this:

$("#parent > div:eq(1)")

Or if it's dynamic and you need to pass it in, use .eq() like this:

$("#parent > div").eq(1)

In both of these we're using 1 because it's a 0-based index, so 1 is the 2nd child.

You will want the children() function

E.g:

$('#parent').children()[1];

Use the :nth-child() selector.

E.g.

$('#parent div:nth-child(2)');

Update due to comment

$('#parent > div:nth-child(2)');

There are couple of simple ways to do this:

var div2 = $("#parent > div:eq(1)")

When using the "eq" selector, note that it is zero-based, so this will, in fact, select the 2nd div within the #parent div.

A second way is:

var div2 = $("#parent > div:nth-child(2)")

The "nth-child" selector is not zero based, so "nth-child(2)" will also select the 2nd div. You can also select odd and even divs via "nth-child(even)" and "nth-child(odd)". It will even evaluate equations in the parenthesis - you can read more about it in the jQuery documentation here.