To get Euler’s constant value in JavaScript, use the Math E property. This is a Euler's constant and the base of natural logarithms, approximately 2.718.
Example
You can try to run the following code to get Euler’s constant value in JavaScript −
<html>
<head>
<title>JavaScript Math E Property</title>
</head>
<body>
<script>
var property_value = Math.E
document.write("Property Value is :" + property_value);
</script>
</body>
</html>Output
Property Value is :2.718281828459045