jQuery index() with examples

jQuery Web Development Front End Technology

The index() method in jQuery is used to return the index position of specified elements relative to other specified elements.

Syntax

The syntax is as follows −

$(selector).index()

Example

Let us now see an example to implement the jQuery index() method −

Live Demo

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
   $(document).ready(function(){
      $("li").click(function(){
         document.getElementById("demo").innerHTML = $(this).index();
      });
   });
</script>
</head>
<body>
<h2>Devices</h2>
<ol>
<li>TV</li>
<li>Laptop</li>
<li>Headphone</li>
<li>Earphone</li>
<li>SSD</li>
</ol>
<p>Index = <span id="demo"> </span></p>
</body>
</html>