jQuery odd() method
As of my last update in September 2021, the jQuery.odd() method is not a part of the core jQuery library. There is no official odd() method in jQuery.
However, jQuery provides various filter methods, and one of them is the :odd selector, which can be used to select odd-indexed elements in a collection of elements.
Here’s the basic syntax of the :odd selector:
$("selector:odd")In this syntax, "selector" is a valid jQuery selector that selects a collection of elements, and :odd filters the collection to only select odd-indexed elements.
Example:
<!DOCTYPE html>
<html>
<head>
<title>jQuery :odd Selector Example</title>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<style>
li {
list-style: none;
}
li:nth-child(odd) {
background-color: #f2f2f2; /* Applying background color to odd-indexed li elements */
}
</style>
</head>
<body>
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
<li>Item 4</li>
<li>Item 5</li>
</ul>
<script>
$(document).ready(function() {
// Select all odd-indexed li elements and apply background color to them
$("li:odd").css("font-weight", "bold");
});
</script>
</body>
</html>In this example, we have an unordered list with several <li> elements. We use the :odd selector to select all odd-indexed <li> elements and apply bold font weight to them.
Keep in mind that :odd uses a zero-based index, meaning the first element in the collection has index 0, the second has index 1, and so on. So, :odd selects elements with index 1, 3, 5, and so on.
As a side note, while there is no official jQuery.odd() method, you can easily achieve similar functionality using the :odd selector in jQuery’s filter methods.