Math.E

Summary

The Math.E property represents the base of natural logarithms, e, approximately 2.718.

Math.E=e2.718\mathtt{\mi{Math.E}} = e \approx 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

Example: Using Math.E

The following function returns e:

function getNapier() {
   return Math.E
}

getNapier() // 2.718281828459045

Specifications

Specification Status Comment
ECMAScript 1st Edition. Implemented in JavaScript 1.0 Standard Initial definition.
ECMAScript Language Specification 5.1th Edition (ECMA-262) Standard  
ECMAScript Language Specification 6th Edition (ECMA-262) 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)

See also

  • The Math object it belongs to.

Document Tags and Contributors

Last updated by: fred.wang,