date-time.js

gistfile1.txt

class DateTime {
	constructor(){
		this._year = null
		this._month = null
		this._date = null

		this._hours = null
		this._minutes = null
		this._seconds = null
	}
	
	set year(year){
		year = Number(year)
		this._year = Number.isNaN(year) ? null : Math.max(0, year)
	}
	get year(){
		return this._year
	}

	set month(month){
		month = Number(month)
		this._month = Number.isNaN(month) ? null : inRange(0, 11, month)
	}
	get month(){
		return this._month
	}

	set date(date){
		date = Number(date)
		this._date = Number.isNaN(date) ? null : inRange(1, 31, date)
	}
	get date(){
		return this._date
	}

	set hours(hours){
		hours = Number(hours)
		this._hours = Number.isNaN(hours) ? null : inRange(0, 23, hours)
	}
	get hours(){
		return this._hours
	}

	set minutes(minutes){
		minutes = Number(minutes)
		this._minutes = Number.isNaN(minutes) ? null : inRange(0, 59, minutes)
	}
	get minutes(){
		return this._minutes
	}

	set seconds(seconds){
		seconds = Number(seconds)
		this._seconds = Number.isNaN(seconds) ? null : inRange(0, 59, seconds)
	}
	get seconds(){
		return this._seconds
	}


	toString(){
		return `${this.toDateString()} ${this.toTimeString()}`
	}
	toDateString(){
		const year = typeof this.year === 'number' ? this.year.toString().padStart(4, 0) : '----'
		const month = typeof this.month === 'number' ? (this.month.toString() + 1).padStart(2, 0) : '--'
		const date = typeof this.date === 'number' ? this.date.toString().padStart(2, 0) : '--'

		return `${year} ${month} ${date}`
	}
	toTimeString(){
		const hours = typeof this.hours === 'number' ? this.hours.toString().padStart(2, 0) : '--'
		const minutes = typeof this.minutes === 'number' ? this.minutes.toString().padStart(2, 0) : '--'

		return `${hours}:${minutes}`
	}
	toDate(){
		return new Date(this.year, this.month, this.date, this.minutes, this.seconds)
	}
}

function inRange(min, max, value){
	return Math.max(min, Math.min(max, value))
}