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JS Reference Manual

JS Reference Manual (Categorized Order)
JS Reference Manual (Alphabetical Order)

JavaScript

JS Array
JS Boolean
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JS Error
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HTML Object

<a>
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<h1> - <h6>
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<time>
<title>
<track>
<u>
<ul>
<var>
<video>

Other reference manuals

CSSStyleDeclaration
JS type conversion

Elective courses

Course recommendation：

CodeW3C.com Toolbox

JavaScript LOG2E property

Previous Page log2()
Next Page LOG10E
Go to the Previous Level JavaScript Math Reference Manual

Definition and usage

LOG2E The property is log2e, which is the logarithm base 2 of e, and its value is approximately 1.442695040888963387.

Example

Returns the logarithm base 2 of E：

Math.LOG2E;

Try it yourself

Syntax

Math.LOG2E

Technical details

Return value：	A number representing the logarithm base 2 of E.
JavaScript version：	ECMAScript 1

Browser Support

Math.LOG2E Is an ES1 Feature (JavaScript 1999). All browsers fully support it:

Chrome	IE	Edge	Firefox	Safari	Opera
Support	Support	Support	Support	Support	Support

Tutorial:JavaScript Math

Previous Page log2()
Next Page LOG10E
Go to the Previous Level JavaScript Math Reference Manual

Course Schedule

JS Reference Manual

JavaScript

Window

HTML DOM

Web API

HTML Object

Other reference manuals

Elective courses

Course recommendation：

JavaScript LOG2E property

Definition and usage

Example

Syntax

Technical details

Browser Support

Related Pages

Toolbox

JavaScript and HTML DOM Reference Manual

JavaScript Examples

JavaScript Quiz

JavaScript Tutorial

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