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    is-nan

    1.3.2 • Public • Published

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    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

    Install

    npm i is-nan

    DownloadsWeekly Downloads

    2,834,076

    Version

    1.3.2

    License

    MIT

    Unpacked Size

    10.8 kB

    Total Files

    16

    Last publish

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