Do calculation in document.write : write « Document « JavaScript Tutorial






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<html>
<head>
<title>Find the area and circumference of a circle</title>
<script type="text/javascript" language="javascript">
<!-- //
function FindArea(){
    var number = new Number(123);
    document.write("<P>You entered a radius of " + number + "</p>");
    document.write("<P>The area of the circle is " + (number * number * Math.PI) + "</p>");
    document.write("<P>The circumference of the circle is " + (2 * number * Math.PI) + "</p>");
}
// -->
</script>
</head>
<body onload="FindArea()">

</body>
</html>








14.37.write
14.37.1.Writing to a Document
14.37.2.Use document.write() to output the HTML tags
14.37.3.Use document.write between the HTML tags
14.37.4.Output all array element with document.write
14.37.5.Do calculation in document.write
14.37.6.Escape quotation marks in document.write
14.37.7.Output the HTML tags by using the document.write
14.37.8.document.writeln()