History

daren.hsu 06181b34d6 update		2022-07-18 02:50:52 +00:00
..
.github	update	2022-07-18 02:50:52 +00:00
test	update	2022-07-18 02:50:52 +00:00
.editorconfig	update	2022-07-18 02:50:52 +00:00
.eslintignore	update	2022-07-18 02:50:52 +00:00
.eslintrc	update	2022-07-18 02:50:52 +00:00
.nycrc	update	2022-07-18 02:50:52 +00:00
CHANGELOG.md	update	2022-07-18 02:50:52 +00:00
index.js	update	2022-07-18 02:50:52 +00:00
LICENSE	update	2022-07-18 02:50:52 +00:00
package.json	update	2022-07-18 02:50:52 +00:00
README.md	update	2022-07-18 02:50:52 +00:00

README.md

is-negative-zero

Is this value negative zero? === will lie to you.

Example

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