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jQuery UI Autocomplete search 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 search event is used to trigger before a search operation is performed after minLength and delay options are met. If these options are canceled, then no request will be started and no items suggested.

Syntax:

Initialize the autocomplete with the search callback specified:

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

 

Bind an event listener to the autocompletesearch event:

$( ".selector" ).on(
    "autocompletesearch",
    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. The ui object can be empty but used for consistency with other events.

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 search 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,
                search: function( event, ui ) {
                    alert("Search Event Triggered");
                }
            });
        });
    </script>
</head>
  
<body>
    <center>
        <div class="ui-widget">
            <h1 style="color: green;">
                GeeksforGeeks
            </h1>
            <h3>jQuery UI Autocomplete search Event</h3>
  
            <label for="GFG">
                Select Subject:
            </label>
  
            <input id="GFG">
        </div>
    </center>
</body>
  
</html>

Output:

Reference: https://api.jqueryui.com/autocomplete/#event-search


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