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object-is
Advanced tools
Changelog
v1.1.5 - 2021-02-20
ec00b0f
eslint
, @ljharb/eslint-config
, aud
, tape
279645e
6b4ef5a
eslint
, functions-have-names
, tape
f5fd32a
call-bind
0fafc13
call-bind
e28a929
f903cc1
Readme
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.
This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec.
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));
Simply clone the repo, npm install
, and run npm test
FAQs
ES2015-compliant shim for Object.is - differentiates between -0 and +0
The npm package object-is receives a total of 14,138,639 weekly downloads. As such, object-is popularity was classified as popular.
We found that object-is demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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