The log2() function of the Math object accepts a number and returns the natural logarithm (base 2) of the given number.
Syntax
Its Syntax is as follows
Math.log2(48);
Example
<html>
<head>
<title>JavaScript Example</title>
</head>
<body>
<script type="text/javascript">
var result = Math.log2(48);
document.write("Result: "+result);
</script>
</body>
</html>Output
Result: 5.584962500721156