number.isnan

ES2015-compliant shim for Number.isNaN.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec.

Example

Number.isNaN = require('number.isnan');
var assert = require('assert');

assert.notOk(Number.isNaN(undefined));
assert.notOk(Number.isNaN(null));
assert.notOk(Number.isNaN(false));
assert.notOk(Number.isNaN(true));
assert.notOk(Number.isNaN(0));
assert.notOk(Number.isNaN(42));
assert.notOk(Number.isNaN(Infinity));
assert.notOk(Number.isNaN(-Infinity));
assert.notOk(Number.isNaN('foo'));
assert.notOk(Number.isNaN(function () {}));
assert.notOk(Number.isNaN([]));
assert.notOk(Number.isNaN({}));

assert.ok(Number.isNaN(NaN));

Tests

Simply clone the repo, npm install, and run npm test

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

v1.0.0 - 2022-06-27

Commits

• [Breaking] migrate package to match is-nan 1.x 71f4c0c
• [meta] add auto-changelog 60e73b8
• [meta] use npmignore to autogenerate an npmignore file 8a78b9a

v0.1.1 - 2015-08-19

Fixed

• Fix typo in reference. Closes #1. #1

Commits

• Release v0.1.1 b7b5cdc

v0.1.0 - 2014-05-21

Commits

• Initial commit d56251c
• Update README 283a1e5
• Add Bower package metadata file a238d9a
• Set up testling properly d14c625
• Add instructions for Bower 371a4a1
• Add badges 1ed4d75
• Release v0.1.0 11afd5a
• Lowercase package name for npm 03e73ad
• Fix Travis configuration 38ba637
• Update README 5e2c344