JSPM

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

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

This is a JavaScript utility. It returns `true` if the value is a string number written in fixed notation and in decimal base.

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

A native module for effectively validating if a value is type Number.

A very limited subset of is-* functions I use every day

check if input is NaN

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.

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

@js-plus/is-nan

Returns true if the value is a number. comprehensive tests.Study from jonschlinkert/is-number