Converts a number or a string to an integer.
npm install @fav/type.to-integerConverts a number or a string to an integer.
> "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.
To install from npm:
``sh`
$ npm install --save @fav/type.to-integer
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][repo-url], and move it in node_modules/@fav/type.to-integer/ directory manually.
For Node.js:
`js`
var toInteger = require('@fav/type.to-integer');
toInteger(123); // => 123
toInteger('456'); // => 456
toInteger(7.89); // => 7
toInteger(Infinity); // => NaN
toInteger('ABC'); // =>> NaN
toInteger('ABC', 100); // => 100
For Web browsers:
`html`
Converts a number or a string to an integer.
If value is a floating point number, this function discard decimals.
If value is neither an integer nor a numeric string, this function returns NaN, or defaultValue if specified.
NOTE: Number('') and Number(' ') return 0. parseInt(' 123'), parseInt('123abc'), parseFloat(' 123') and parseFloat('123abc') return 123. However, this function returns NaN` in all such cases.
#### Parameter:
| Parameter | Type | Description |
|--------------|:------:|---------------------------------------|
| value | any | The number or string to be converted. |
| defaultValue | any | Is returned when failing to convert. (Optional) |
#### Returns:
The converted integer value, or NaN (or defaultValue if specified) when failing to convert.
Type: number
| Platform | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|:---------:|:------:|:------:|:------:|:------:|:------:|:------:|:------:|
| macOS |◯|◯|◯|◯|◯|◯|◯|
| Windows10 |◯|◯|◯|◯|◯|◯|◯|
| Linux |◯|◯|◯|◯|◯|◯|◯|
| Platform | 1 | 2 | 3 |
|:---------:|:------:|:------:|:------:|
| macOS |◯|◯|◯|
| Windows10 |◯|◯|◯|
| Linux |◯|◯|◯|
| Platform | 0.8 | 0.9 | 0.10 | 0.11 | 0.12 |
|:---------:|:------:|:------:|:------:|:------:|:------:|
| macOS |◯|◯|◯|◯|◯|
| Windows10 |◯|◯|◯|◯|◯|
| Linux |◯|◯|◯|◯|◯|
| Platform | Chrome | Firefox | Vivaldi | Safari | Edge | IE11 |
|:---------:|:------:|:-------:|:-------:|:------:|:------:|:------:|
| macOS |◯|◯ |◯ |◯| -- | -- |
| Windows10 |◯|◯ |◯ | -- |◯|◯|
| Linux |◯|◯ |◯ | -- | -- | -- |
Copyright (C) 2017-2018 Takayuki Sato
This program is free software under [MIT][mit-url] License.
See the file LICENSE in this distribution for more details.
[repo-url]: https://github.com/sttk/fav-type.to-integer/
[npm-img]: https://img.shields.io/badge/npm-v1.0.3-blue.svg
[npm-url]: https://www.npmjs.com/package/@fav/type.to-integer
[mit-img]: https://img.shields.io/badge/license-MIT-green.svg
[mit-url]: https://opensource.org/licenses/MIT
[travis-img]: https://travis-ci.org/sttk/fav-type.to-integer.svg?branch=master
[travis-url]: https://travis-ci.org/sttk/fav-type.to-integer
[appveyor-img]: https://ci.appveyor.com/api/projects/status/github/sttk/fav-type.to-integer?branch=master&svg=true
[appveyor-url]: https://ci.appveyor.com/project/sttk/fav-type-to-integer
[coverage-img]: https://coveralls.io/repos/github/sttk/fav-type.to-integer/badge.svg?branch=master
[coverage-url]: https://coveralls.io/github/sttk/fav-type.to-integer?branch=master