const {email} = require('is-this-correct')
email('testmail@mymailservices.com') // true
email('testmail@mymailservices.com.tr') // true
email('@mymailservices.com') // false
email('test@mymailservices') // false

const {least6Char} = require('is-this-correct')
least6Char('123456') // true
least6Char('1234') // false
least6Char(123456) // true
least6Char(12345) // false

const {isFunction} = require('is-this-correct')
let testFnc = function () { }
isFunction(testFnc) // true

const {isStringEmpty} = require('is-this-correct')
let emptyString = ""
isStringEmpty(emptyString) // true
 
let str = "notempty"
isStringEmpty(str) // false

const {isNumber} = require('is-this-correct')
let nmr = 1
isNumber(nmr) // true
let str = "ds"
isNumber(str) // false