Is number Packages

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

This is a [fonk](https://github.com/Lemoncode/fonk) microlibrary that brings validation capabilities to validate if a field of a form is a number

Simple set of functions to check variables. Includes check of undefined / defined / defined and not null / defined and not empty / is number / is function is object

check whether value is undefined or empty or null

check whether value is undefined or empty or null

This is an useful package which check if the given parameter is a number