fast-isnumeric

The fast way to check if a JS object is numeric

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``
npm install fast-isnumeric
`

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`js
var isNumeric = require('fast-isnumeric');

isNumeric(/ any JS object /);
`

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Run comparison on jsperf: http://jsperf.com/isnumeric-jquery-and-alternate/5

![](http://i.imgur.com/dczrlVE.png)

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Please look up the test cases in
test.js before
using this module.

Most importantly, fast-isnumeric returns false on number and string
constructors. That is, isNumeric(new Number(1)) and isNumeric(new
String('1')) are false.

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Test locally with karma:

`
npm test
`

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In plotly's javascript graphing library
plotly.js numerical objects must be accounted
for in numerous hot code paths. Inspired by Jon Schlinkert's
is-number, fast-isnumeric` is
significantly simplified and sped up by ignoring number and string constructors.

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Alex Johnson | https://github.com/alexcjohnson

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Copyright (c) 2015 Alex Johnson Released under the MIT license.