The Math.LOG2E
property represents the base 2 logarithm of e, approximately 1.442:
Property attributes of Math.LOG2E
| |
---|---|
Writable | no |
Enumerable | no |
Configurable | no |
Because LOG2E
is a static property of Math
, you always use it as Math.LOG2E
, rather than as a property of a Math
object you created (Math
is not a constructor).
Math.LOG2E
The following function returns the base 2 logarithm of e:
function getLog2e() { return Math.LOG2E; } getLog2e(); // 1.4426950408889634
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.LOG2E' in that specification. | Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Math.LOG2E' in that specification. | Standard | |
ECMAScript Latest Draft (ECMA-262) The definition of 'Math.LOG2E' in that specification. | Draft |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | Yes | Yes | 1 | Yes | Yes | Yes |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | Yes | Yes | Yes | 4 | Yes | Yes | Yes |
Server | |
---|---|
Node.js | |
Basic support | Yes |
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/LOG2E