How to store all dates in an array present in between given two dates in JavaScript ?
Last Updated :
03 Jul, 2024
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Given two dates the task is to get the array of dates between the two given dates using JavaScript.
Below are the following approaches:
Approach 1: Using push() Method
- Select the first and last date and store it in a variable.
- Check if the start date is less than the stop date then push the current date in an array and increment its value by 1 day.
- Repeat the above step until currentDate equal to the last date.
Example: In this example, the array of dates is determined by the above approach.
Date.prototype.addDay = function (days) {
let date = new Date(this.valueOf());
date.setDate(date.getDate() + days);
return date;
}
function getDate(strDate, stpDate) {
let dArray = new Array();
let cDate = strDate;
while (cDate <= stpDate) {
// Adding the date to array
dArray.push(new Date(cDate) + '<br>');
// Increment the date by 1 day
cDate = cDate.addDay(1);
}
return dArray;
}
function GFG_Fun() {
let startDate = new Date();
// Making lastDate equal to 4 more days
// from startDate.
let endDate = startDate.addDay(4);
console.log(getDate(startDate, endDate));
}
GFG_Fun();
Output
[ 'Tue Jul 18 2023 18:59:06 GMT+0000 (Coordinated Universal Time)<br>', 'Wed Jul 19 2023 18:59:06 GMT+0000 (Coordinated Universal Time)<br>', 'Thu Jul 20 2023 18:59:06 GMT+0000 (Coordinated Univ...
Approach 2: Using for loop and push() Method
- Get the first and last date and store it into a variable.
- Calculate 1 day equivalent in milliseconds called _1Day.
- Set a variable equal to the start date, called ms
- Push ms (milli-seconds) in form of a date in an array and increment its value by _1Day.
- Repeat the above step until ms is equal to the last date.
Example: In this example, the array of dates is determined by the above approach.
Date.prototype.addDay = function (days) {
let date = new Date(this.valueOf());
date.setDate(date.getDate() + days);
return date;
};
function getDates(date1, date2) {
let _1Day = 24 * 3600 * 1000;
// Date[] keeps all the dates
let dates = [];
for (let ms = date1.getTime(), last = date2.getTime();
ms <= last; ms += _1Day) {
dates.push(new Date(ms));
}
return dates;
}
function GFG_Fun() {
let startDate = new Date();
// Making lastDate equal to 4 more days
// from startDate
let endDate = startDate.addDay(4);
console.log(getDates(startDate, endDate));
}
GFG_Fun();
Output
[ 2023-07-18T19:12:03.831Z, 2023-07-19T19:12:03.831Z, 2023-07-20T19:12:03.831Z, 2023-07-21T19:12:03.831Z, 2023-07-22T19:12:03.831Z ]
Approach 3: Using concat method
The function getAllDates uses a for loop to iterate through dates between startDate and endDate, incrementing by one day each iteration. Dates are then concatenated into an array.
Example:
function getAllDates(startDate, endDate) {
let dates = [];
for (let date = new Date(startDate); date <= endDate;
date.setDate(date.getDate() + 1)) {
dates = dates.concat(new Date(date));
}
return dates;
}
const startDate = new Date('2023-01-01');
const endDate = new Date('2023-01-10');
const result = getAllDates(startDate, endDate);
console.log(result);
Output
[ 2023-01-01T00:00:00.000Z, 2023-01-02T00:00:00.000Z, 2023-01-03T00:00:00.000Z, 2023-01-04T00:00:00.000Z, 2023-01-05T00:00:00.000Z, 2023-01-06T00:00:00.000Z, 2023-01-07T00:00:00.000Z, ...