Math.E
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The Math.E static data property represents Euler's number, the base of natural logarithms, e, which is approximately 2.718.
Try it
function compoundOneYear(interestRate, currentVal) {
return currentVal * Math.E ** interestRate;
}
console.log(Math.E);
// Expected output: 2.718281828459045
console.log((1 + 1 / 1000000) ** 1000000);
// Expected output: 2.718280469 (approximately)
console.log(compoundOneYear(0.05, 100));
// Expected output: 105.12710963760242
Value
Property attributes of Math.E | |
|---|---|
| Writable | no |
| Enumerable | no |
| Configurable | no |
Description
Because E is a static property of Math, you always use it as Math.E, rather than as a property of a Math object you created (Math is not a constructor).
Examples
Using Math.E
The following function returns e:
js
function getNapier() {
return Math.E;
}
getNapier(); // 2.718281828459045
Specifications
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-math.e |
Browser compatibility
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