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JavaScript & HTML DOM Reference Manual

Overview

JavaScript Object

JavaScript Array Object JavaScript Boolean Object JavaScript Date Object JavaScript Math Object JavaScript Number Object JavaScript String Object JavaScript RegExp Object JavaScript Global properties / functions JavaScript Operator

Browser Object

Window Object Navigator Object Screen Object History Object Location Object

DOM Object

HTML DOM Document Object HTML DOM Element object HTML DOM Attribute object HTML DOM Event object

HTML Object

<a> <area> <audio> <base> <blockquote> <body> <button> <canvas> <col> <colgroup> <datalist> <del> <details> <dialog> <embed> <fieldset> <form> <iframe> <frameset > <img> <ins> <input> - button <input> - checkbox <input> - color <input> - date <input> - datetime <input> - datetime-local <input> - email <input> - file <input> - hidden <input> - image <input> - month <input> - number <input> - range <input> - password <input> - radio <input> - reset <input> - search <input> - submit <input> - text <input> - time <input> - url <input> - week <keygen> <link> <label> <legend> <li> <map> <menu> <menuItem> <meta> <meter> <object> <ol> <optgroup> <option> <param> <progress> <q> <script> <select> <source> <style> <table> <td> <th> <tr> <textarea> <title> <time> <track> <video>

JavaScript LOG2E property

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JavaScript Math Object

Examples

Returns the base 2 logarithm of e:

Math.LOG2E;

Output:

1.4426950408889634

Definition and Usage

LOG2E property is log2e, namely 2 logarithm to the base e, and its value is approximated value of 1.442695040888963387.

Browser Support

All major browsers support LOG2E property.

grammar

Math.LOG2E

technical details

return value:	Returns the base 2 logarithm of e (approximately equal to 1.414).
JavaScript version:	1.0

JavaScript Math Object

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Next: JavaScript LN10 property