HTML | onbeforeprint Event Attribute

The onbeforeprint attribute works when a page is about to be printed. The alert message display before the print dialogue box appears. The onbeforeprint attribute is used with the onafterprint attribute.

Syntax:

<element onbeforeprint = "script">

Attribute Value: This attribute contains single attribute value script and it works when document is about to print. This attribute is supported by <body> tag.



Example:

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<!DOCTYPE html>
<html>
    <head>
        <title>onbeforeprint attribute</title>
        <style>
            body {
                text-align:center;
            }
            h1 {
                color:green;
            }
        </style>
    </head>
    <body onbeforeprint="myFunction()">
        <h1>GeeksforGeeks</h1>
        <h2>onbeforeprint attribute</h2>
        <!-- The script run when page will ready to print -->
        <script>
            function myFunction() {
                alert("This document is ready to be printed");
            }
        </script>
    </body>
</html>

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Output:

Supported Browsers: The browser supported by onbeforeprint attribute are listed below:

  • Chrome 63.0 and above
  • Internet Explorer
  • Firefox
  • Safari: Not supported
  • Opera: Not supported


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