tree: d939926c269b7e337e066fcf452ccf0cac914cd1 [path history] [tgz]
  1. .github/
  2. test/
  3. .editorconfig
  4. .eslintrc
  5. .nycrc
  6. CHANGELOG.md
  7. index.d.ts
  8. index.js
  9. LICENSE
  10. package.json
  11. README.md
  12. tsconfig.json
node_modules/is-negative-zero/README.md

is-negative-zero Version Badge

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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