.even()
Reduce the set of matched elements to the even ones in the set, numbered from zero.
.even()🡢 jQuery
Given a jQuery object that represents a set of DOM elements, the .even() method constructs a new jQuery object from the even elements in that set. Counting starts from zero!
Consider a page with a simple list on it:
<ul>
<li>list item 1</li>
<li>list item 2</li>
<li>list item 3</li>
<li>list item 4</li>
<li>list item 5</li>
</ul>
We can apply this method to the set of list items:
$("li").even().css("background-color", "red");
The result of this call is a red background for the first, third & 5th items.
Highlight the even items in a list.
JS
<ul>
<li>Look:</li>
<li>This is some text in a list.</li>
<li>This is a note about it.</li>
<li>This is another note about it.</li>
</ul>
CSS
.highlight {
background-color: yellow;
}
HTML
$("ul li").even().addClass("highlight");
DEMO