我熟悉位于npm的一个包用于将格里高利日期转换为波斯语(jalali),但我不知道如何在离子2角2项目中使用它。
或此角度为1的包:
是否可以将此包转换为角度2?任何的想法?或欢迎教程...
答案 0 :(得分:19)
首先在项目中添加提供程序:
import {Injectable} from '@angular/core';
@Injectable()
export class PersianCalendarService {
weekDayNames: string[] = ["شنبه", "یکشنبه", "دوشنبه",
"سه شنبه", "چهارشنبه",
"پنج شنبه", "جمعه"];
monthNames: string[] = [
"فروردین",
"اردیبهشت",
"خرداد",
"تیر",
"مرداد",
"شهریور",
"مهر",
"آبان",
"آذر",
"دی",
"بهمن",
"اسفند"];
strWeekDay: string = null;
strMonth: string = null;
day: number = null;
month: number = null;
year: number = null;
ld: number = null;
farsiDate: string = null;
today: Date = new Date();
gregorianYear = null;
gregorianMonth = null;
gregorianDate = null;
WeekDay = null;
buf1: number[] = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
buf2: number[] = [0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335];
constructor() {
}
PersianCalendar(gregorianDate): string {
this.today = gregorianDate;
this.gregorianYear = this.today.getFullYear();
this.gregorianMonth = this.today.getMonth() + 1;
this.gregorianDate = this.today.getDate();
this.WeekDay = this.today.getDay();
this.toPersian(gregorianDate);
return this.strWeekDay + " " + this.day + " " + this.strMonth + " " + this.year;
}
toPersian(gregorianDate) {
if ((this.gregorianYear % 4) != 0)
this.farsiDate = this.func1();
else
this.farsiDate = this.func2();
this.strMonth = this.monthNames[Math.floor(this.month - 1)];
this.strWeekDay = this.weekDayNames[this.WeekDay + 1];
}
func1(): string {
this.day = this.buf1[this.gregorianMonth - 1] + this.gregorianDate;
if (this.day > 79) {
this.day = this.day - 79;
if (this.day <= 186) {
var day2 = this.day;
this.month = (day2 / 31) + 1;
this.day = (day2 % 31);
if (day2 % 31 == 0) {
this.month--;
this.day = 31;
}
this.year = this.gregorianYear - 621;
}
else {
var day2 = this.day - 186;
this.month = (day2 / 30) + 7;
this.day = (day2 % 30);
if (day2 % 30 == 0) {
this.month = (day2 / 30) + 6;
this.day = 30;
}
this.year = this.gregorianYear - 621;
}
}
else {
this.ld = this.gregorianYear > 1996 && this.gregorianYear % 4 == 1 ? 11 : 10;
var day2 = this.day + this.ld;
this.month = (day2 / 30) + 10;
this.day = (day2 % 30);
if (day2 % 30 == 0) {
this.month--;
this.day = 30;
}
this.year = this.gregorianYear - 622;
}
var fullDate = this.day + "/" + Math.floor(this.month) + "/" + this.year;
return fullDate
}
func2(): string {
//console.log("entered func2");
this.day = this.buf2[this.gregorianMonth - 1] + this.gregorianDate;
this.ld = this.gregorianYear >= 1996 ? 79 : 80;
if (this.day > this.ld) {
this.day = this.day - this.ld;
if (this.day <= 186) {
var day2 = this.day;
this.month = (day2 / 31) + 1;
this.day = (day2 % 31);
if (day2 % 31 == 0) {
this.month--;
this.day = 31;
}
this.year = this.gregorianYear - 621;
} else {
var day2 = this.day - 186;
this.month = (day2 / 30) + 7;
this.day = (day2 % 30);
if (day2 % 30 == 0) {
this.month--;
this.day = 30;
}
this.year = this.gregorianYear - 621;
}
var fullDate = this.day + "/" + Math.floor(this.month) + "/" + this.year;
return fullDate
}
else {
var day2 = this.day + 10;
this.month = (day2 / 30) + 10;
this.day = (day2 % 30);
if (day2 % 30 == 0) {
this.month--;
this.day = 30;
}
this.year = this.gregorianYear - 622;
}
}
}
下一步:在您的代码中导入此服务:
import {PersianCalendarService} from '../../providers/persian-calendar-service/persian-calendar-service';
下一步:在 @Page 部分
中实施提供商的名称@Page({
templateUrl: 'build/pages/getting-started/getting-started.html',
providers: [PersianCalendarService]
})
并在构造函数
中constructor(
public persianCalendarService: PersianCalendarService) {}
然后只需要将日期传递给函数以获得Jalali日期的良好输出:
getJalaliDate(date) {
var date1 = this.persianCalendarService.PersianCalendar(date);
this.farsiDate = date1;
}
我将很快在github中添加此代码。 感谢
答案 1 :(得分:1)
你可以通过Jalali日历和Gregorian之间的毫秒差来做到这一点,这是我的解决方案:
var g_date = new Date("2018-04-04 00:00:00"); // example Gregorian date
g_date_in_milliseconds = date.getTime(); // Gregorian date in milliseconds
const difference = 1.9603638 * Math.pow(10, 13); // difference of Jalali calendar and Gregoria
j_date_in_milliseconds = g_date_in_milliseconds - difference; // converted to Jalali milliseconds
j_date = new Date(j_date_in_milliseconds); // converted to date object
你可以通过这种技术轻松地将Jalali转换为Gregorian:
g_date_in_milliseconds = j_date_in_milliseconds + difference;
g_date = new Date(g_date_in_milliseconds);
答案 2 :(得分:1)
无需使用任何软件包。您可以使用toLocaleDateString方法。
它的使用是如此简单:
var d = new Date();
console.info(d.toLocaleDateString("fa-IR"))
输出将类似于۱۳۹۹/۳/۱۰
但是您可以使用选项使它看起来更好!例如:
const options = { year: 'numeric', month: 'long', day: 'numeric' };
console.info(d.toLocaleDateString("fa-IR", options))
// output> ۱۰ خرداد ۱۳۹۹
注意:如果您将方向更改为
rtl
,则看起来正确!
再举一个例子:
const options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
console.info(d.toLocaleDateString("fa-IR", options))
// output> ۱۳۹۹ خرداد ۱۰, شنبه
再次:您必须使用
rtl
方向才能正确查看它!
您也可以使用Intl.toLocaleTimeString来显示时间。像这样:
console.info(d.toLocaleDateString("fa-IR"));
// output> ۱۶:۰۶:۰۰
const options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
console.info(d.toLocaleDateString("fa-IR", options));
// output> ۱۳۹۹ خرداد ۱۰, شنبه، ۱۶:۰۴:۱۶
最后一次!不要忘记
rtl
的方向。
答案 3 :(得分:0)
简单来说: 新日期(2019,2,21).toLocaleDateString('fa-Ir'); //输出=> ۱۳۹۸/۱/۱