Javascript DOM onbeforeprint Event via addEventListener() method

Introduction

In JavaScript, using the addEventListener() method: 

object.addEventListener("beforeprint",
       myScript);

The beforeprint event is not supported in Safari and Opera.

This example uses the addEventListener() method to attach a "beforeprint" event to the window object.

View in separate window 

<!DOCTYPE html>
<html>
<body>
<h1>Try to print this document</h1>
<p id="demo"></p>
<script>
window.addEventListener("beforeprint", myFunction);

function myFunction() {/*from   w w w  . j a va2s  .c  om*/
  document.getElementById("demo").innerHTML = "You are about to print this document!";
}
</script>

</body>
</html>
Bubbles: No
Cancelable: No
Event type: Event
Supported HTML tags: <body>



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