@fav/math.log10
Calculates the base 10 logarithm of a number.
This program is made referring to this article about Math.log10 of MDN web docs.
"fav" is an abbreviation of "favorite" and also the acronym of "for all versions". This package is intended to support all Node.js versions and many browsers as possible. At least, this package supports Node.js >= v0.10 and major Web browsers: Chrome, Firefox, IE11, Edge, Vivaldi and Safari.
Install
To install from npm:
$ npm install --save @fav/math.log10
NOTE: npm < 2.7.0 does not support scoped package, but old version Node.js supports it. So when you use such older npm, you should download this package from github.com, and move it in node_modules/@fav/math.log10/
directory manually.
Usage
For Node.js:
var log10 = require('@fav/math.log10');
Math.log10(2); // => 0.3010299956639812
Math.log10(1); // => 0
Math.log10(0); // => -Infinity
Math.log10(-2); // => NaN
Math.log10(100000); // => 5
For Web browsers:
<script src="fav.math.log10.min.js"></script>
<script>
var log10 = fav.math.log10;
log10(2); // => 0.3010299956639812
</script>
API
log10(x) : number
Calculates the base 10 logarithm of a number.
Parameters:
Parameter | Type | Description |
---|---|---|
x | number | A number. |
Returns:
The base 10 logarithm of the given number. If the number is negative, NaN is returned.
Checked
Node.js (11〜)
Platform | 11 |
---|---|
macOS | ◯ |
Windows10 | ◯ |
Linux | ◯ |
Node.js (4〜10)
Platform | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
---|---|---|---|---|---|---|---|
macOS | ◯ | ◯ | ◯ | ◯ | ◯ | ◯ | ◯ |
Windows10 | ◯ | ◯ | ◯ | ◯ | ◯ | ◯ | ◯ |
Linux | ◯ | ◯ | ◯ | ◯ | ◯ | ◯ | ◯ |
io.js (1〜3)
Platform | 1 | 2 | 3 |
---|---|---|---|
macOS | ◯ | ◯ | ◯ |
Windows10 | ◯ | ◯ | ◯ |
Linux | ◯ | ◯ | ◯ |
Node.js (〜0.12)
Platform | 0.8 | 0.9 | 0.10 | 0.11 | 0.12 |
---|---|---|---|---|---|
macOS | ◯ | ◯ | ◯ | ◯ | ◯ |
Windows10 | ◯ | ◯ | ◯ | ◯ | ◯ |
Linux | ◯ | ◯ | ◯ | ◯ | ◯ |
Web browsers
Platform | Chrome | Firefox | Vivaldi | Safari | Edge | IE11 |
---|---|---|---|---|---|---|
macOS | ◯ | ◯ | ◯ | ◯ | -- | -- |
Windows10 | ◯ | ◯ | ◯ | -- | ◯ | ◯ |
Linux | ◯ | ◯ | ◯ | -- | -- | -- |
License
Copyright (C) 2018 Takayuki Sato
This program is free software under MIT License. See the file LICENSE in this distribution for more details.