How to use Callback Before Function in JQuery

In this article I am going to explain about Callback before function in jquery.
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Query Callback Before function

jquery callback function use for display an message before any action. When event occurs then firstly a message will be display after that action will be complete.

Syntax

$("selector").hide(1000);

    alert("Your message");

Example

In this example when you click on button firstly message will display then after code will be execute.

<html>

<head>

    <script type="text/javascript" src="jquery.js"></script>

    <script type="text/javascript">

        $(document).ready(function () {

            $("button").click(function () {

                $("h3").hide(1000);

                alert("This heading is now hidden");

            });

        });

    </script>

</head>

<body>

    <button>

        click me</button>

    <h3>

        Click Button For Hide

    </h3>

</body>

</html>

Output

before.jpg

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