jQuery UI Autocomplete select Event

Last Updated : 22 Dec, 2021

jQuery UI consists of GUI widgets, visual effects, and themes implemented using HTML, CSS, and jQuery. jQuery UI is great for building UI interfaces for the webpages. The jQuery UI Autocomplete widget is used to perform autocomplete enables to quickly find and select from a pre-populated list of values as they type, leveraging searching and filtering.

The jQuery UI Autocomplete select event is used to trigger when an item is selected from the menu list.

Syntax:

Initialize the autocomplete with the select callback specified:

$( ".selector" ).autocomplete({
   select: function( event, ui ) {}
});

Bind an event listener to the autocomplete select event:

$( ".selector" ).on(
    "autocompleteselect",
    function( event, ui ) {}
);

Parameters: It accepts a callback function that holds two parameters.

event: It accepts Event type value.
ui: It accepts Object type value.
- item: It is an object with label and value properties for the selected option.

CDN Link: First, add jQuery UI scripts needed for your project.

<link rel=”stylesheet” href=”//code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css”>
<script src=”//code.jquery.com/jquery-1.12.4.js”></script>
<script src=”//code.jquery.com/ui/1.12.1/jquery-ui.js”></script>

Example: This example describes the uses of jQuery UI Autocomplete select event.

HTML

<!DOCTYPE html> 
<html> 
<head> 
    <meta charset="utf-8"> 
    <meta name="viewport" content= 
        "width=device-width, initial-scale=1"> 
    <link rel="stylesheet" href= 
"//code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css"> 
    <script src="//code.jquery.com/jquery-1.12.4.js"> 
    </script> 
    <script src="//code.jquery.com/ui/1.12.1/jquery-ui.js"> 
    </script> 
  
    <script> 
        $(function () { 
            var subjects = [ 
                "HTML", 
                "CSS", 
                "JavaScript", 
                "jQuery", 
                "PHP", 
                "React", 
                "Node.js" 
            ]; 
            $("#GFG").autocomplete({ 
                source: subjects, 
                select: function( event, ui ) { 
                    alert("Select Event Triggered"); 
                } 
            }); 
        }); 
    </script> 
</head> 
  
<body> 
    <center> 
        <div class="ui-widget"> 
            <h1 style="color: green;"> 
                GeeksforGeeks 
            </h1> 
            <h3>jQuery UI Autocomplete select Event</h3> 
  
            <label for="GFG"> 
                Select Subject: 
            </label> 
  
            <input id="GFG"> 
        </div> 
    </center> 
</body> 
  
</html>