urbanu619 e168f54beb first commit vor 10 Monaten
..
.github e168f54beb first commit vor 10 Monaten
test e168f54beb first commit vor 10 Monaten
.eslintrc e168f54beb first commit vor 10 Monaten
.travis.yml e168f54beb first commit vor 10 Monaten
CHANGELOG.md e168f54beb first commit vor 10 Monaten
LICENSE e168f54beb first commit vor 10 Monaten
README.md e168f54beb first commit vor 10 Monaten
auto.js e168f54beb first commit vor 10 Monaten
implementation.js e168f54beb first commit vor 10 Monaten
index.js e168f54beb first commit vor 10 Monaten
package.json e168f54beb first commit vor 10 Monaten
polyfill.js e168f54beb first commit vor 10 Monaten
shim.js e168f54beb first commit vor 10 Monaten

README.md

is-nan Version Badge

Build Status dependency status dev dependency status License Downloads

npm badge

ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.

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

Example

Number.isNaN = require('is-nan');
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