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How to use the differenceInDays function from date-fns

Find comprehensive JavaScript date-fns.differenceInDays code examples handpicked from public code repositorys.

date-fns.differenceInDays is a function in the date-fns library that calculates the difference in days between two dates.

DateFns.js

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exports.differenceInCalendarISOYearsImpl = dateFns.differenceInCalendarISOYears
exports.differenceInCalendarMonthsImpl = dateFns.differenceInCalendarMonths
exports.differenceInCalendarQuartersImpl = dateFns.differenceInCalendarQuarters
exports.differenceInCalendarWeeksImpl = dateFns.differenceInCalendarWeeks
exports.differenceInCalendarYearsImpl = dateFns.differenceInCalendarYears
exports.differenceInDaysImpl = dateFns.differenceInDays
exports.differenceInHoursImpl = dateFns.differenceInHours
exports.differenceInISOYearsImpl = dateFns.differenceInISOYears
exports.differenceInMillisecondsImpl = dateFns.differenceInMilliseconds
exports.differenceInMinutesImpl = dateFns.differenceInMinutes

+ 16 other calls in file

MenuSchedule.tsx

GitHub: nurub52/fmbApplication

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const isReviewEnabled = (reviewDate:string) => {
  return dateFns.isToday(dateFns.parseISO(reviewDate)) 
         ? dateFns.getHours(new Date()) > 19
         : !dateFns.isFuture(dateFns.parseISO(reviewDate)) &&
         !isMealCancelledOnDate(reviewDate)&&  
         dateFns.differenceInDays(
                dateFns.parseISO(reviewDate),
                dateFns.addDays(new Date() , -5) )
                  <=  5

How does date-fns.differenceInDays work?

The date-fns.differenceInDays function is a part of the date-fns library, which is a lightweight JavaScript library that provides various utility functions for working with dates. When you call the date-fns.differenceInDays function, you pass in two date objects as arguments. The function then calculates the difference in days between the two dates, ignoring any time component. The function returns a number that represents the difference in days between the two dates. If the difference is positive, the first date is later than the second date. If the difference is negative, the first date is earlier than the second date. If the difference is zero, the two dates are the same. For example, you can use the date-fns.differenceInDays function to calculate the number of days between two dates: javascript Copy code {{{{{{{ const differenceInDays = require('date-fns/differenceInDays'); const date1 = new Date('2022-01-01'); const date2 = new Date('2022-01-10'); const days = differenceInDays(date2, date1); console.log(days); // Output: 9 In this example, we first require the differenceInDays function from the date-fns module in our Node.js application. We then define two date objects date1 and date2, representing January 1st, 2022 and January 10th, 2022 respectively. We then use the differenceInDays function to calculate the difference in days between the two dates, storing the result in a variable named days. Finally, we print the result to the console using the console.log method. Overall, the date-fns.differenceInDays function provides a simple way to calculate the difference in days between two dates in a Node.js application using the date-fns library.

issueService.js

GitHub: sumitpanwar-kiwi/Library-Assignment

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const issue = await getIssue({bookId : book.id, returnDate : undefined});

await changeBookAvailability(book);

const returnDate = new Date();
const issueDays = datefns.differenceInDays(returnDate, issue.issueDate);
await updateIssue(issue._id, {returnDate, issueDays})

return{
    status : true,

+ 17 other calls in file

common.js

GitHub: sumitpanwar-kiwi/Library-Assignment

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    var object ={
        bookId : book.id,
        bookName : book.name,
        userId : issues[i].userId,
        issueDate : issues[i].issueDate,
        issueDays : datefns.differenceInDays(new Date(), issues[i].issueDate)
    };

    returnArray.push(object);
}

+ 29 other calls in file

Ai Example

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const differenceInDays = require("date-fns/differenceInDays");

const date1 = new Date("2022-01-01");
const date2 = new Date("2022-01-10");
const days = differenceInDays(date2, date1);

console.log(days); // Output: 9

In this example, we first require the differenceInDays function from the date-fns module in our Node.js application. We then define two date objects date1 and date2, representing January 1st, 2022 and January 10th, 2022 respectively. We then use the differenceInDays function to calculate the difference in days between the two dates, storing the result in a variable named days. Finally, we print the result to the console using the console.log method. Overall, this example demonstrates how to use date-fns.differenceInDays to calculate the difference in days between two dates in a Node.js application using the date-fns library.

common.js

GitHub: sumitpanwar-kiwi/Library-Assignment

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        bookId : book.id,
        bookName : book.name,
        userId : issues[i].userId,
        issueDate : issues[i].issueDate,
        issueDays : datefns.differenceInDays(new Date(), issues[i].issueDate),
        daysleft : 7 - datefns.differenceInDays(new Date(), issues[i].issueDate)
    };

    returnArray.push(object);
}

+ 244 other calls in file

nutritionCalculations.js

GitHub: robbiekthomas/food-tracking-app

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const calculateDifferenceInDays = (dateStr1, dateStr2) => {
  const date1 = parse(dateStr1, 'yyyy-MM-dd', new Date());
  const date2 = parse(dateStr2, 'yyyy-MM-dd', new Date());


  const numDays = differenceInDays(date2, date1);


  return numDays;
}

+ 19 other calls in file

common.js

GitHub: sumitpanwar-kiwi/Library-Assignment

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	object = {
		bookId : book.id,
		bookName : book.name,
		issueDate : element.issueDate,
		warning : 'Your issued Days limit have been passed',
		issueDays : datefns.differenceInDays(new Date(), element.issueDate),
		returnDate : 'NOT RETURNED'
	};
}else{
	object = {

+ 404 other calls in file

a.js

GitHub: flaviopcsilva/meus-exercicios2

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const resultado = addBusinessDays(new Date(2023, 0, 9), /*dias para chegar*/7);


console.log(resultado);


//diference
const chegadaDoProduto = differenceInDays(resultado, new Date(2023, 0, 9));


console.log(`Previsão de entrega: ${chegadaDoProduto} dias.`);


//set

+ 4 other calls in file

deathcountdown.js

GitHub: AyakoBot/Ayako-v1.4

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var result = temp + ' years ';
x = dateFns.addYears(x, temp);
temp = dateFns.differenceInMonths(y, x);
result = result + temp + ' months ';
x = dateFns.addMonths(x, temp);
temp = dateFns.differenceInDays(y, x);
result = result + temp + ' days ';
x = dateFns.addDays(x, temp);
temp = dateFns.differenceInHours(y, x);
result = result + temp + ' hours ';

+ 6 other calls in file

ReplyToComment.js

GitHub: jjhmero8659/Junhada_FrontEnd

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const now = new Date();
const localDateTimeString = props.reply.writeDate;
const localDateTime = parseISO(localDateTimeString);
const diffInHours = differenceInHours(now, localDateTime);
const diffInDays = differenceInDays(now, localDateTime);
const diffInMonths = differenceInMonths(now, localDateTime);

if(diffInMonths >= 1){
    setElapsedTime(`${diffInMonths}달 전`)

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