jQuery UI Interaction : Droppable

Using jQuery droppable plug-in , you can make selected elements droppable (meaning they accept being dropped on by draggables).

All callbacks receive two arguments: The original browser event and a prepared ui object, view below for a documentation of this object (if you name your second argument 'ui'):

ui.draggable - current draggable element, a jQuery object.
ui.helper - current draggable helper, a jQuery object
ui.position - current position of the draggable helper { top: , left: }
ui.offset - current absolute position of the draggable helper { top: , left: }

For options, events and method click here

Example :

droppable.html

<!DOCTYPE html>

            <html>

            <head>

            <link href="http://ajax.googleapis.com/ajax/libs/jqueryui

            /1.8/themes/base/jquery-ui.css" 
            rel="stylesheet" type="text/css"/>

            <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js">

            </script>

            <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js">

            </script>

            <style type="text/css">

            #draggable { width: 75px; height: 25px; background: silver; padding: 10px; }

            #droppable { position: absolute; left: 250px; top: 0; width: 125px; height: 
            75px; 

            background: gray; color: white; padding: 10px; }

            </style>

            <script>

            $(document).ready(function() {

            $("#draggable").draggable();

            $("#droppable").droppable({

            drop: function() { alert('dropped'); }

            });

            });

            </script>

            </head>

            <body style="font-size:62.5%;">

            

            <div id="droppable">Drop here</div>

            <div id="draggable">Drag me</div>

            

            </body>

            </html>

Output :

When you drop small box on big one , it will show a alert message :

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