IsNaN Packages

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

The lodash method `_.isNaN` exported as a module.

Validates if a value is NaN.

Validates if a value is a NaN primitive.

Computes for each array element whether an element is NaN.

Test whether value is NaN

A JavaScript/Typescript library for fast type checking. Check if a given value is a string, number, object, ...

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

The ts-is-number a utility npm package that checks if a given input is a valid finite number or a string that can be converted to a valid finite number.

A simple utility to Check the value is number or can convert to a number, for example string ' 123 ' can be converted to 123.

Multiplies a number by zero. Useful for when you need to multiply a number by zero.

Returns sensible integer value of a given variable. Unlike parseInt it will never return NaN and you can set a default value to be returned in case the variable is undefined! Hence you can write even cleaner code. So if it's supposed to be an integer, cas

[](https://discord.gg/ZVERh35) [](https://npmjs.com/fast-is-number) [

Test if a value is NaN.

Test if a value is an array-like object containing only NaN values.

Test if a double-precision floating-point numeric value is NaN.

Test if a single-precision floating-point numeric value is NaN.