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# 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
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