52 lines
1.7 KiB
Markdown
52 lines
1.7 KiB
Markdown
# is-negative-zero <sup>[![Version Badge][2]][1]</sup>
|
|
|
|
[![dependency status][5]][6]
|
|
[![dev dependency status][7]][8]
|
|
[![License][license-image]][license-url]
|
|
[![Downloads][downloads-image]][downloads-url]
|
|
|
|
[![npm badge][11]][1]
|
|
|
|
Is this value negative zero? === will lie to you.
|
|
|
|
## Example
|
|
|
|
```js
|
|
var isNegativeZero = require('is-negative-zero');
|
|
var assert = require('assert');
|
|
|
|
assert.notOk(isNegativeZero(undefined));
|
|
assert.notOk(isNegativeZero(null));
|
|
assert.notOk(isNegativeZero(false));
|
|
assert.notOk(isNegativeZero(true));
|
|
assert.notOk(isNegativeZero(0));
|
|
assert.notOk(isNegativeZero(42));
|
|
assert.notOk(isNegativeZero(Infinity));
|
|
assert.notOk(isNegativeZero(-Infinity));
|
|
assert.notOk(isNegativeZero(NaN));
|
|
assert.notOk(isNegativeZero('foo'));
|
|
assert.notOk(isNegativeZero(function () {}));
|
|
assert.notOk(isNegativeZero([]));
|
|
assert.notOk(isNegativeZero({}));
|
|
|
|
assert.ok(isNegativeZero(-0));
|
|
```
|
|
|
|
## Tests
|
|
Simply clone the repo, `npm install`, and run `npm test`
|
|
|
|
[1]: https://npmjs.org/package/is-negative-zero
|
|
[2]: http://versionbadg.es/inspect-js/is-negative-zero.svg
|
|
[3]: https://travis-ci.org/inspect-js/is-negative-zero.svg
|
|
[4]: https://travis-ci.org/inspect-js/is-negative-zero
|
|
[5]: https://david-dm.org/inspect-js/is-negative-zero.svg
|
|
[6]: https://david-dm.org/inspect-js/is-negative-zero
|
|
[7]: https://david-dm.org/inspect-js/is-negative-zero/dev-status.svg
|
|
[8]: https://david-dm.org/inspect-js/is-negative-zero#info=devDependencies
|
|
[11]: https://nodei.co/npm/is-negative-zero.png?downloads=true&stars=true
|
|
[license-image]: http://img.shields.io/npm/l/is-negative-zero.svg
|
|
[license-url]: LICENSE
|
|
[downloads-image]: http://img.shields.io/npm/dm/is-negative-zero.svg
|
|
[downloads-url]: http://npm-stat.com/charts.html?package=is-negative-zero
|
|
|