Have ideas to improve npm?Join in the discussion! »

    object-is

    1.1.5 • Public • Published

    #object-is Version Badge

    Build Status dependency status dev dependency status License Downloads

    npm badge

    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.

    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

    Install

    npm i object-is

    DownloadsWeekly Downloads

    11,776,914

    Version

    1.1.5

    License

    MIT

    Unpacked Size

    23.3 kB

    Total Files

    16

    Last publish

    Collaborators

    • avatar
    • avatar