jQuery UI Selectable start Event

Last Updated : 15 Dec, 2021

jQuery UI consists of GUI widgets, visual effects, and themes implemented using the jQuery JavaScript Library. jQuery UI is great for building UI interfaces for the webpages. It can be used to build highly interactive web applications or can be used to add widgets easily.

The jQuery UI Selectable start event is used to triggered when the select operation start.

Syntax:

Initialize the Selectable widget with the start callback function:

$( ".selector" ).selectable({
  start: function( event, ui ) {}
});

Bind an event listener to the selectablestart event:

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

Parameters:

event: This event is triggered when the selecting starts.
ui: It is a jQuery empty object that is used for consistency with other events.

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

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

Example:

HTML

<!doctype html>
<html lang="en">

<head>
    <link rel="stylesheet" href=
"https://code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css">
    <script src=
"https://code.jquery.com/jquery-1.12.4.js">
    </script>
    <script src=
"https://code.jquery.com/ui/1.12.1/jquery-ui.js">
    </script>
    <style>
        h1 {
            color: green;
        }

        #list .ui-selecting {
            background: greenyellow;
        }

        #list .ui-selected {
            color: white;
            background: green;
        }
    </style>
</head>

<body>
    <h1>GeeksforGeeks</h1>
    <h3>jQuery UI Selectable start Event</h3>
    <h3>GeeksforGeeks Subjects</h3>
    <ul id="list">
        <li>Data Structure</li>
        <li>Algorithm</li>
        <li>C++</li>
        <li>Java</li>
        <li>HTML</li>
        <li>Bootstrap</li>
        <li>PHP</li>
    </ul>

    <div class="res"></div>

    <script>
        $(document).ready(function () {
            $("#list").selectable();

            $("#list").selectable({
                start: function(event, ui) {
                    $(".res").html("Start Event Triggered");
                },
                stop: function (event, ui) { 
                    $(".res").html("Stop Event Triggered");
                }
            });
        });
    </script>
</body>

</html>

Output:

Reference: https://api.jqueryui.com/selectable/#event-start

jQuery UI Selectable start Event

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jQuery UI Selectable start Event

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