Click me Only Once

February 28, 2010

Click me Only Once - jQuery

Sunday, February 28, 2010 Posted by Suprotim Agarwal
Labels: jQuery

I have seen a very frequently asked question by developers – How to execute an event only once. With jQuery, achieving this requirement is very simple using One

Here’s how:

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Click me once only</title>
    <script type="text/javascript"
    src="http://ajax.microsoft.com/ajax/jQuery/jquery-1.4.2.min.js">
    </script>
    <script type="text/javascript">
        $(function() {
            $("#Submit1").one('click', function() {
                $(this).val("No more alerts");
                alert('');
            });
        });
    </script>
</head>
<body>
    <input id="Submit1" type="submit" value="submit" />
</body>
</html>

In the code shown above, the click event is fired only once and the alert is displayed. All subsequent clicks will do nothing

Live Demo

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About The Author

Suprotim Agarwal, ASP.NET Architecture MVP works as an Architect Consultant and provides consultancy on how to design and develop Web applications.

Suprotim is also the founder and primary contributor to DevCurry, DotNetCurry and SQLServerCurry. He has also written an EBook 51 Recipes using jQuery with ASP.NET Controls.

Follow him on twitter @suprotimagarwal