tree: 43d68c6ca6bd7e3ce7dfd11c9a63d75f725c83b0 [path history] [tgz]
  1. .jscs.json
  2. .npmignore
  3. .travis.yml
  4. index.js
  5. LICENSE
  6. package.json
  7. README.md
  8. test.js
src/third_party/devtools/node_modules/object-is/README.md

#object-is Version Badge

Build Status dependency status dev dependency status

npm badge

browser support

ES6-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