is-nan

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

v1.3.2 URL: https://unpkg.com/is-nan@1.3.2/index.js

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is NaN not a number number isNaN ES6 ES2015 shim polyfill es-shim API

to-integer

Converts the given value to an integer.

v1.0.1 URL: https://unpkg.com/to-integer@1.0.1/index.js

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to parse convert converter parser type number length int integer float decimal binary octal hex NaN infinity

nan-x

The constant NaN derived mathematically by 0 / 0.

v2.2.1 URL: https://unpkg.com/nan-x@2.2.1/dist/nan-x.js

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number NaN module javascript nodejs browser

is-number-strict

Tiny lib to check if passed argument is strictly number. Strings will not pass!

v1.0.9 URL: https://unpkg.com/is-number-strict@1.0.9/dist/index.min.js

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number typecheck typeof types NaN

falzy

Check if the value is undefined, null, empty string, NaN and Infinity.

v0.23.0 URL: https://unpkg.com/falzy@0.23.0/falzy.js

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value undefined null empty-string NaN false falsy falzy