"use strict"

const moment = require('moment')

class MomentValidations {
    constructor(dateTimeString) {
        this.dateTimeString = dateTimeString
    }

    isUtc() {
        let formatString = 'YYYY-MM-DDTHH:mm:ssZ'
        let dateObject = moment(this.dateTimeString, formatString, true)
        return dateObject.isValid()
    }
}

//Simple usage of a class in JS
console.log(new MomentValidations("2019-05-11T12:05:37Z").isUtc())  //--> true
//Directly using the library with the format specified
console.log(moment("2019-05-11T12:05:37Z", 'YYYY-MM-DDTHH:mm:ssZ', true).isValid())  //--> true
//Directly using the library using the internal ISO format in moment library
console.log(moment("2019-05-11T12:05:37Z").isValid())  //--> true