You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Björn
b963b3396c
|
5 years ago | |
---|---|---|
.. | ||
.github/workflows | 5 years ago | |
test | 5 years ago | |
.eslintrc | 5 years ago | |
.travis.yml | 5 years ago | |
CHANGELOG.md | 5 years ago | |
LICENSE | 5 years ago | |
README.md | 5 years ago | |
auto.js | 5 years ago | |
implementation.js | 5 years ago | |
index.js | 5 years ago | |
package.json | 5 years ago | |
polyfill.js | 5 years ago | |
shim.js | 5 years ago |
README.md
ES2015-compliant shim for Object.is - differentiates between -0 and +0, and can compare to NaN.
Essentially, Object.is returns the same value as === - but true for NaN, and false for -0 and +0.
Example
Object.is = require('object-is');
var assert = require('assert');
assert.ok(Object.is());
assert.ok(Object.is(undefined));
assert.ok(Object.is(undefined, undefined));
assert.ok(Object.is(null, null));
assert.ok(Object.is(true, true));
assert.ok(Object.is(false, false));
assert.ok(Object.is('foo', 'foo'));
var arr = [1, 2];
assert.ok(Object.is(arr, arr));
assert.notOk(Object.is(arr, [1, 2]));
assert.ok(Object.is(0, 0));
assert.ok(Object.is(-0, -0));
assert.notOk(Object.is(0, -0));
assert.ok(Object.is(NaN, NaN));
assert.ok(Object.is(Infinity, Infinity));
assert.ok(Object.is(-Infinity, -Infinity));
Tests
Simply clone the repo, npm install
, and run npm test