https://github.com/inspect-js/is-negative-zero

Is this value negative zero? === will lie to you.
https://github.com/inspect-js/is-negative-zero

is javascript negative zero

Last synced: 3 months ago
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Is this value negative zero? === will lie to you.

• Host: GitHub
• URL: https://github.com/inspect-js/is-negative-zero
• Owner: inspect-js
• License: mit
• Created: 2014-01-20T07:11:00.000Z (almost 11 years ago)
• Default Branch: main
• Last Pushed: 2024-03-11T05:05:47.000Z (8 months ago)
• Last Synced: 2024-07-19T02:47:58.544Z (4 months ago)
• Topics: is, javascript, negative, zero
• Language: JavaScript
• Homepage:
• Size: 92.8 KB
• Stars: 18
• Watchers: 4
• Forks: 6
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

Awesome Lists containing this project

README

        
# is-negative-zero [![Version Badge][npm-version-svg]][package-url]

[![github actions][actions-image]][actions-url]

[![coverage][codecov-image]][codecov-url]

[![dependency status][deps-svg]][deps-url]

[![dev dependency status][dev-deps-svg]][dev-deps-url]

[![License][license-image]][license-url]

[![Downloads][downloads-image]][downloads-url]

[![npm badge][npm-badge-png]][package-url]

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`

[package-url]: https://npmjs.org/package/is-negative-zero

[npm-version-svg]: https://versionbadg.es/inspect-js/is-negative-zero.svg

[deps-svg]: https://david-dm.org/inspect-js/is-negative-zero.svg

[deps-url]: https://david-dm.org/inspect-js/is-negative-zero

[dev-deps-svg]: https://david-dm.org/inspect-js/is-negative-zero/dev-status.svg

[dev-deps-url]: https://david-dm.org/inspect-js/is-negative-zero#info=devDependencies

[npm-badge-png]: https://nodei.co/npm/is-negative-zero.png?downloads=true&stars=true

[license-image]: https://img.shields.io/npm/l/is-negative-zero.svg

[license-url]: LICENSE

[downloads-image]: https://img.shields.io/npm/dm/is-negative-zero.svg

[downloads-url]: https://npm-stat.com/charts.html?package=is-negative-zero

[codecov-image]: https://codecov.io/gh/inspect-js/is-negative-zero/branch/main/graphs/badge.svg

[codecov-url]: https://app.codecov.io/gh/inspect-js/is-negative-zero/

[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/is-negative-zero

[actions-url]: https://github.com/inspect-js/is-negative-zero/actions