[英]How to calculate the elapsed days between two dates
Suppose users trip start from 07/06/2019 and its end on 14/07/2019. 假设用户的旅程开始于2019年6月6日,结束于2019年7月14日。
so on 07/06/2019 day will be = 1 (today is 1 day of your trip) on 08/06/2019 day will be =2 (today is second of your trip) . 因此,在07/06/2019一天将是= 1(今天是您旅行的1天),在08/06/2019上一天将是= 2(今天是您的旅行的第二天)。 so on
依此类推
I try to do somthing like this but its not working. 我试图做这样的事情,但是没有用。
let startDay =moment('9.6.2019', 'DD.MM.YYYY')
let today =moment()
let endDay = moment('10.6.2019', 'DD.MM.YYYY')
let start_to_today_days = today.diff(startDay, 'days')
let start_to_end_days = endDay.diff(startDay, 'days')
let actDay = parseInt(start_to_end_days)-
parseInt(start_to_today_days)
let expendday = parseInt(start_to_today_days) - parseInt(actDay)
console.log(Math.abs(expendday))
user booked trip today for 7/06/2019 to 14/07/2109. 使用者今天预订了旅程,时间为7/06/2019至14/07/2109。 day counter will start from tomorrow and count elapsed days until end date reached.
天计数器将从明天开始,计算经过的天数直到结束日期。
You could create a function using moment.js to calculate elapsed times. 您可以使用moment.js创建一个函数来计算经过的时间。
// Day of trip is the trip duration + 1.. function getDayOfTrip(tripStartString, currentDateString) { let startDate = moment(tripStartString, 'DD.MM.YYYY'); let currentDate = moment(currentDateString, 'DD.MM.YYYY'); return currentDate.diff(startDate, 'days') + 1; } let tripStartTime = '7.6.2019'; let tripDates = ['7.6.2019', '8.6.2019', '9.6.2019', '10.6.2019', '11.6.2019', '12.6.2019']; tripDates.forEach(tripDate => console.log(`Trip date: ${tripDate}, day of trip: ${getDayOfTrip(tripStartTime, tripDate)}`));
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/moment-timezone/0.5.25/moment-timezone-with-data-10-year-range.js"></script>
The diff between 2 days will give you the number of milliseconds and with the bellow calculation you can get the number of days: 2天之间的差异将为您提供毫秒数,并且通过下面的计算可以得到天数:
let startDay =moment('9.6.2019', 'DD.MM.YYYY') let today =moment() let endDay = moment('10.6.2019', 'DD.MM.YYYY') let days = Math.floor(parseInt(endDay - startDay)/(24*60*60*1000)); console.log(Math.abs(days))
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.js"></script>
Use below function code to find out no of days elapsed between two dates 使用下面的功能代码找出两个日期之间没有经过的天数
function dayElapsed(firstDate , secondDate) {
let day , month , year;
const firstArr = firstDate.split('.');
const secondArr = secondDate.split('.');
day = Math.abs(parseInt(firstArr[0]) - parseInt(secondArr[0]));
month = Math.abs(parseInt(firstArr[1]) - parseInt(secondArr[1]));
year = Math.abs(parseInt(firstArr[2]) - parseInt(secondArr[2]));
return (day + month*30 + year*365);
}
// call to function
dayElapsed('06.06.2019' , '08.06.2019')
fixed 固定
tripElapsedDaysOutLayCounter(s, e) {
const COMING_SOON = "COMING SOON",
TRIP_COMPLETED = "TRIP COMPLETED",
INVALID_DATES = "INVALID DATES",
DAY_ONE = 1
let today = moment(new Date().toISOString().slice(0, 10).replace(/-/g, "."), 'YYYY.MM.DD')
let startDay = moment(s, 'YYYY.MM.DD')
let endDay = moment(e, 'YYYY.MM.DD')
let end_start_day = endDay.diff(startDay, 'days')
let today_to_end_day = today.diff(endDay, 'days')
if (startDay.isValid() && endDay.isValid()) {
if (startDay.isAfter(today) && endDay.isAfter(today)) {
return COMING_SOON
} else if (startDay.isBefore(today) && endDay.isBefore(today)) {
return TRIP_COMPLETED
} else if (startDay.isSame(today) && endDay.isAfter(today)) {
return DAY_ONE
} else if (startDay.isSame(endDay)) {
return DAY_ONE
} else {
return Math.abs(Math.abs(end_start_day) -
Math.abs(today_to_end_day))+1
}
} else {
return INVALID_DATES
}
}
Thank you everyone for your precious answers 谢谢大家的宝贵回答
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