caoge c760052ff9 机车状态修改		il y a 8 mois
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.github	c760052ff9 机车状态修改	il y a 8 mois
test	c760052ff9 机车状态修改	il y a 8 mois
.editorconfig	c760052ff9 机车状态修改	il y a 8 mois
.eslintignore	c760052ff9 机车状态修改	il y a 8 mois
.eslintrc	c760052ff9 机车状态修改	il y a 8 mois
.nycrc	c760052ff9 机车状态修改	il y a 8 mois
CHANGELOG.md	c760052ff9 机车状态修改	il y a 8 mois
LICENSE	c760052ff9 机车状态修改	il y a 8 mois
README.md	c760052ff9 机车状态修改	il y a 8 mois
index.js	c760052ff9 机车状态修改	il y a 8 mois
package.json	c760052ff9 机车状态修改	il y a 8 mois

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

README.md

is-negative-zero

Example

Tests