The toExponential() function of the Number object returns a string representing the number object in exponential notation.
Syntax
Its Syntax is as follows
var num=77.1234;
num.toExponential('0xF', 16);Example
<html>
<head>
<title>JavaScript Example</title>
</head>
<body>
<script type="text/javascript">
var num = 77.1234;
document.write( num.toExponential(4));
document.write("<br>");
var num = 77.1234;
document.write(num.toExponential());
document.write("<br>");
var num = 77.1234;
var num = 77.1234;
document.write(num.toExponential(0));
</script>
</body>
</html>Output
7.7123e+1 7.71234e+1 8e+1