:even Selector
even selector
version added: 1.0jQuery(':even')
Description: Selects even elements, zero-indexed. See also odd.
In particular, note that the 0-based indexing means that, counter-intuitively, :even selects the first element, third element, and so on within the matched set.
Additional Notes:
- Because
:evenis a jQuery extension and not part of the CSS specification, queries using:evencannot take advantage of the performance boost provided by the native DOMquerySelectorAll()method. To achieve the best performance when using:evento select elements, first select the elements using a pure CSS selector, then use.filter(":even").
Example:
Finds even table rows, matching the first, third and so on (index 0, 2, 4 etc.).
<!DOCTYPE html>
<html>
<head>
<style>
table {
background:#eeeeee;
}
</style>
<script src="http://code.jquery.com/jquery-1.7rc2.js"></script>
</head>
<body>
<table border="1">
<tr><td>Row with Index #0</td></tr>
<tr><td>Row with Index #1</td></tr>
<tr><td>Row with Index #2</td></tr>
<tr><td>Row with Index #3</td></tr>
</table>
<script>$("tr:even").css("background-color", "#bbbbff");</script>
</body>
</html>