is-number
Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.
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)
This is a JavaScript utility. It returns `true` if the value is a string number written in fixed notation and in decimal base.
Checks whether a value is a finite number or not.
A native module for effectively validating if a value is type Number.
EcmaScript library to check value is valid number or not 🙌
Check does the given Javascript Object is a number.
This is a JavaScript utility. It returns `true` if the value is a number or plain number string (not in scientific exponential notation or hexadecimal notation for instance).
Check if node's require() is working!
Returns true if the value is a number. comprehensive tests.Study from jonschlinkert/is-number
Extended functions for defining and converting data types.
Checks whether a value is an integer or not.
Check if the parameter is number
Type check in TypeScript
ESNext type checker.
A JavaScript/Typescript library for fast type checking. Check if a given value is a string, number, object, ...
Simple and light-weight JavaScript type checker that brings convenience!
An utility to check if a value is a number (allowing string numbers optionally).
Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.