Get dates in between two dates with JavaScript.

getDates.js

// Returns an array of dates between the two dates
function getDates (startDate, endDate) {
  const dates = []
  let currentDate = startDate
  const addDays = function (days) {
    const date = new Date(this.valueOf())
    date.setDate(date.getDate() + days)
    return date
  }
  while (currentDate <= endDate) {
    dates.push(currentDate)
    currentDate = addDays.call(currentDate, 1)
  }
  return dates
}

// Usage
const dates = getDates(new Date(2013, 10, 22), new Date(2013, 11, 25))
dates.forEach(function (date) {
  console.log(date)
})

How about filling missing dates inside arrays

var array=[
{date:"2016-11-17T00:00:00"}, //start
{date:"2016-11-19T00:00:00"},
{date:"2016-11-18T00:00:00"},
{date:"2016-11-21T00:00:00"},
{date:"2016-11-22T00:00:00"},
{date:"2016-11-23T00:00:00"},
{date:"2017-11-27T00:00:00"},//end
];

Actually very useful for charts that has missing data.

Very good, thank you sir!

if you are looking for specific days of the week this will give them to you granted you provide a string array, otherwise, just dont use the if statement .

import * as moment from "moment";
import * as _ from 'lodash';

getDatesOfDays(startDate: moment.Moment, endDate: moment.Moment, dayArray: string[]) {
           var range = [];
           var dayNames = ['sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday'];
        while (moment(startDate) <= moment(endDate)){
            if (dayArray.includes(dayNames[startDate.day()])) {
                range.push(startDate.clone());
            }
            startDate.add(1 , 'days');
        }
        return range;
}

https://gist.github.com/miguelmota/7905510#file-getdates-js
It's very pretty.
I solved my problem.

Node.js & ES6

get days diff between two dates and output all weekdays in between including start and end dates.
return an array of dates.

const moment = require("moment");
const getDatesDiff = (start_date, end_date, date_format = "YYYY-MM-DD") => {
  const getDateAsArray = date => {
    return moment(date.split(/\D+/), date_format);
  };
  const diff = getDateAsArray(end_date).diff(getDateAsArray(start_date), "days") + 1;
  const dates = [];
  for (let i = 0; i < diff; i++) {
    const nextDate = getDateAsArray(start_date).add(i, "day");
    const isWeekEndDay = nextDate.isoWeekday() > 5;
    if (!isWeekEndDay)
      dates.push(nextDate.format(date_format))
  }
  return dates;
};

Use:

const date_log = getDaysDiff ('2019-10-17',  '2019-10-25');
console.log(date_log);

output:

date_log = 
[ '2019-10-17',
  '2019-10-18',
  '2019-10-21',
  '2019-10-22',
  '2019-10-23',
  '2019-10-24',
  '2019-10-25'
]

I tried this and it was returned wrong
getDates(new Date(2019,12,22), new Date(2020,1,7));

Wed Jan 22 2020 00:00:00 GMT+0700 (Indochina Time)
Thu Jan 23 2020 00:00:00 GMT+0700 (Indochina Time)
Jan 24 2020 00:00:00 GMT+0700 (Indochina Time)
Sat Jan 25 2020 00:00:00 GMT+0700 (Indochina Time)
Sun Jan 26 2020 00:00:00 GMT+0700 (Indochina Time)
Mon Jan 27 2020 00:00:00 GMT+0700 (Indochina Time)
Tue Jan 28 2020 00:00:00 GMT+0700 (Indochina Time)
Wed Jan 29 2020 00:00:00 GMT+0700 (Indochina Time)
Thu Jan 30 2020 00:00:00 GMT+0700 (Indochina Time)
Fri Jan 31 2020 00:00:00 GMT+0700 (Indochina Time)
Sat Feb 01 2020 00:00:00 GMT+0700 (Indochina Time)
Sun Feb 02 2020 00:00:00 GMT+0700 (Indochina Time)
Mon Feb 03 2020 00:00:00 GMT+0700 (Indochina Time)
Tue Feb 04 2020 00:00:00 GMT+0700 (Indochina Time)
Wed Feb 05 2020 00:00:00 GMT+0700 (Indochina Time)
Thu Feb 06 2020 00:00:00 GMT+0700 (Indochina Time)
Fri Feb 07 2020 00:00:00 GMT+0700 (Indochina Time)

Thanks for the code.

Please provide code for getting hours in between two dates with JavaScript.

Example

let date1 = new Date(1582545600000) // 24th Feb 17:30
let date2 = new Date(1582574400000) // 25th Feb 01:30
getHourWiseDates(date1, date2);

Output
[ { start_hour: 1582545600000 // 24th Feb 17:30 end_hour: 1582547399099 // 24th Feb 17:59 }, { start_hour: 1582547400000 // 24th Feb 18:00 end_hour: 1582550999099 // 24th Feb 18:59 } ... ... ... { start_hour: 1582572600000 //25th Feb 01:00 end_hour: 1582574400000 // 25th Feb 01:30 } ]

i want this type of array like shortmonths name and years starting date is Sep 2017 to current months and year

Using dayjs and accepting any of the dayjs supported types (from millisecond to year), in typescript and returning either Dates or numbers (unix timestamps in milliseconds)

export function dateRange(
  start: Date | number,
  end: Date | number,
  interval: "millisecond" | "second" | "minute" | "hour" | "day" | "week" | "month" | "year",
  asUnixTimestampsMS = false,
): (number | Date)[] {
  const startDate = dayjs(start);
  const endDate = dayjs(end);
  const diffInUnits = endDate.diff(startDate, interval)
  return Array.from(Array(diffInUnits + 1).keys()).map((i) => {
    return asUnixTimestampsMS ? startDate.add(i, interval).valueOf() : startDate.add(i, interval).toDate()
  });
}

I'm selected dates
24-01-2022
25-01-2022

but I get

Thu Feb 24 2022 00:00:00 GMT+0530 (India Standard Time)
Fri Feb 25 2022 00:00:00 GMT+0530 (India Standard Time)

and my code

var dests = getDates(new Date(des[2],des[1],des[0]), new Date(des1[2],des1[1],des1[0]));
dests.forEach(function(date) {
console.log(dests);
});
how to fix it?

Perfectly.. Thanks u bro

This for Get range dates, work for me

var start = '24-01-2022';
var end = '26-01-2022';
var dates = getDates(new Date(start), new Date(end));
// dates.forEach(function(date) {
// console.log(date);
// });

// Get Range Dates
console.log(dates.length);

Life saver. Thank you @miguelmota.

I would convert it to TypeScript version.

const getDates = (startDate: Date, endDate: Date) => {
  const dates = []
  let currentDate = startDate
  const addDays = (currentDate: Date, days: number) => {
    const date = new Date(currentDate)
    date.setDate(date.getDate() + days)
    return date
  }
  while (currentDate <= endDate) {
    dates.push(currentDate)
    currentDate = addDays(currentDate, 1)
  }
  return dates
}

I would convert it to TypeScript version.

const getDates = (startDate: Date, endDate: Date) => {
  const dates = []
  let currentDate = startDate
  const addDays = (currentDate: Date, days: number) => {
    const date = new Date(currentDate)
    date.setDate(date.getDate() + days)
    return date
  }
  while (currentDate <= endDate) {
    dates.push(currentDate)
    currentDate = addDays(currentDate, 1)
  }
  return dates
}

Thank you