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The Math.E
property represents the base of natural logarithms, e, approximately 2.718.
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:
function getNapier() { return Math.E; } getNapier(); // 2.718281828459045
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 1st Edition (ECMA-262) | Standard | Initial definition. Implemented in JavaScript 1.0. |
ECMAScript 5.1 (ECMA-262) The definition of 'Math.E' in that specification. |
Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Math.E' in that specification. |
Standard | |
ECMAScript 2017 Draft (ECMA-262) The definition of 'Math.E' in that specification. |
Draft |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |