IsNumber Packages

A small footprint is numeric value function for Node.js

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

it's simplest way to detect the type

Test whether a string contains only numeric digits.

Test whether a string contains only numeric digits.

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

Test if a value is a number having a nonnegative value.

Test whether a string contains only alphanumeric characters.

Test whether a string contains only alphanumeric characters.

Test if a value is an array-like object containing only safe integers.

Test if a value is an array-like object containing only finite numbers.

Test if a value is an array-like object containing only nonnegative numbers.

Test if a value is a number having a nonpositive finite value.

Test if a value is an array-like object containing only nonpositive integers.

Test if a value is a number having a nonpositive value.

Test if a value is an array-like object containing only nonpositive numbers.

Test if a value is a number.

Test if a value is an array-like object of numbers.

Test if a string is a well-formed string.

Test if a value is a number having a finite negative value.