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JavaScript confirm Box



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The confirm box in JavaScript is used to display a message and return a true or false value.

JavaScript confirm Box Example

Here is an example demonstrates confirm box in JavaScript:

<!DOCTYPE HTML>
<html>
<head>
	<title>JavaScript confirm Box</title>
</head>
<body>

<h3>JavaScript confirm Box Example</h3>
<script type="text/javascript">
	
	var checkval = confirm("Are you sure to delete this file ?");
	if(checkval)
		document.write("Welcome to codescracker.com! <br/>You have successfully deleted the file.");
	else
		document.write("Welcome to codescracker.com! <br/>The file is not deleted.");
	
</script>

</body>
</html>

Here are some sample outputs of the above JavaScript confirm box example. This is the initial output produced by the above JavaScript code:

javascript confirm box

This is the output after pressing OK button:

javascript confirm box example

This is the output after pressing Cancel button:

confirm box javascript

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