JSPM

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

Checks whether provided parameter looks like a number

Utilities to get and check variable types (isString, isPlainObject, isRegExp, 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.

Checks whether a value is a finite number or not.

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

An Angular Library, that gives you a hussle free experience on data operation using pipes

Checks whether a value is an integer or not.

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.

Check your types at runtime with ESNext syntax by meta programing in node.js and browser with interfaces, strict object and more.

Simple and light-weight JavaScript type checker that brings convenience!

A small JavaScript library that enhances Quality of Life by solving various problems.

A strict, fast, zero-dependency utility for checking JavaScript numbers

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.

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

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

General utility function to verify its argument looks like a number

Type check in TypeScript

EcmaScript library to check value is valid number or not 🙌

Extended functions for defining and converting data types.

Check does the given Javascript Object is a number.

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

Check does the given Javascript Object is a number.

Check if node's require() is working!

check input is it input number or not

Check if the parameter is number

An utility to check if a value is a number (allowing string numbers optionally).

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