How to use the sub function from date-fns

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

date-fns.sub subtracts a duration from a date, returning a new date.

db.js

GitHub: lokal-profil/cassandra-GLAM-tools

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exports.getProjectsCount = getProjectsCount;

const reportDataCache = {};
async function getReportData(glam, forDate = new Date()) {
  if (dateFns.isToday(forDate)) {
    forDate = dateFns.sub(forDate, { days: 1 });
  }
  const forDateString = dateFns.format(forDate, dbDateFormat);
  if (reportDataCache[glam.name]) {
    const report = reportDataCache[glam.name][forDateString];

+ 3 other calls in file

dates.js

GitHub: coworking-metz/tickets-backend

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    endOfWeek(start, {weekStartsOn: 1})
  ])
}


function getLastMonthRange(date) {
  const start = sub(startOfMonth(date), {months: 1})
  return formatRange([
    start,
    endOfMonth(start)
  ])

+ 15 other calls in file

How does date-fns.sub work?

date-fns.sub is a function that subtracts a specified amount of time from a given date or time. The function takes two arguments: the date or time to be subtracted from and an object specifying the amount of time to subtract, which can include units such as years, months, days, hours, minutes, seconds, and milliseconds.

index.js

GitHub: vivekUnico/cms-vivek

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    temp.push({ isEnquiry: true });
  }
}
let curr = new Date();
curr.setHours(0, 0, 0, 0);
curr = sub(curr, { days: "30" });
if (Arr.length == 0) Arr.push({});
let data = await LeadAndEnquiry.aggregate([
  { $lookup : {
    from: "staffs",

+ 73 other calls in file

orders.js

GitHub: medberroug/proofBackend

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},

async getKPIOrders() {
    const today = new Date();
    const lastMonth = sub(today, { months: 1 });
    const lastWeek = sub(today, { weeks: 1 });
    const yesterday = sub(today, { days: 1 });

    const thisMonthRange = { start: startOfMonth(today), end: endOfMonth(today) };
    const lastMonthRange = { start: startOfMonth(lastMonth), end: endOfMonth(lastMonth) };

+ 5 other calls in file

Ai Example

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const { sub } = require("date-fns");

const date = new Date(2022, 0, 1); // January 1, 2022
const newDate = sub(date, { days: 10 }); // December 22, 2021

console.log(newDate);

In the example above, we import the sub function from the date-fns library, create a new date object representing January 1st, 2022, and then subtract 10 days from it using the sub function. The resulting date is December 22nd, 2021.

Other functions in date-fns

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