This question already has answers here:
How to add days to Date?
(56 answers)
Closed 9 years ago.
I have a textfield that inputs date in this format: yyyy-mm-dd, how can I add a day to that users input? I have the following code but it doesnt work...
users_date = document.getElementById('users_date').value;
var date = new Date(users_date);
var next_date = new Date();
next_date .setDate(date.getDate()+1);
document.getElementById('next_date').value = next_date;
The first problem is the format of the date in the second is like 'Mon Aug 05 2013 16:24:40 GMT-0500 (Hora est. Pacífico, Sudamérica)'
The second problem is that when the user input the fist day of the month like '2013-01-01' or '2013-08-01' it displays 'Sun Sep 01 2013 16:26:06 GMT-0500 (Hora est. Pacífico, Sudamérica)' ALWAYS
For example if user inputs 2013-01-01 I want another textfield to be 2013-01-02 or 2013-08-31 it displays 2013-09-01, how can I do that?
Thanks!!
ITS NOT DUPLICATE BECAUSE THE OTHER POST DOESN'T FORMAT THE DATE!!!!
Prior to ES5 there was no standard for parsing dates. Now there is a format that is a version of ISO8601, however it isn't supported by all browsers in use and is not typically used for user input.
Normally a format is requested or a "date picker" used that returns a specific format. From there, it's quite simple to parse the string to create a Date object:
// s is date string in d/m/y format
function stringToDate(s) {
var b = s.split(/\D/);
return new Date(b[2], --b[1], b[0]);
}
For ISO8601 format (y-m-d), just change the order of the parts:
// s is date string in y/m/d format
function isoStringToDate(s) {
var b = s.split(/\D/);
return new Date(b[0], --b[1], b[2]);
}
To add one day to a Date object, just add one day:
var now = new Date();
var tomorrow = now.setDate(now.getDate() + 1);
This should work:
var date = new Date(document.getElementById('users_date').value);
var next_date = new Date(date.getTime() + 24*60*60*1000); // adding a day
document.getElementById('next_date').value = next_date.getFullYear() + "-" +
(next_date.getMonth()++) + "-" + next_date.getDate();
Please, note that Date#getMonth() is zero-based. Hence, the increment.
Related
I have an HTML <input type="date" name="departing" /> which returns for example the date in the following format: 2021-11-07
When I forward this variable to my handlebars, it is being displayed as follows:
Mon Nov 08 2021 01:00:00 GMT+0100 (Central European Standard Time)
I would like to have it displayed as:
07/11/2021
I tried formatting it with date-fns like this:
departing = format(parseISO(departing.getDate()), "dd/MM/yyyy");
But then my handlebar shows: "Invalid Date"
I am so confused. Any ideas on how to get that date to be displayed in the 07/11/2021
format?
First of all create a date object
const newDate = new Date();
Now you can manipulate code to get answer whatever you want
var outputDate = newDate .getDate() + "/" + (newDate.getMonth()+1) + "/" +
newDate.getFullYear();
Output will be looks like 01/11/2021
Well you could go as simple as using #getDate(), #getMonth() and #getFullYear() methods separately then displaying them in the order you'd like like so:
const date = new Date(departing);
const day = date.getDate();
const month = date.getMonth() + 1;
const year = date.getFullYear();
console.log(`${day}/${month}/${year}`);
Hope it answers the question.
You could do it by several ways
method 1:-
let n = new Date()
console.log(n.toLocaleDateString("en-US")
output=== 31/9/2021
method 2 :- get separate values and merge
let n = new Date()
console.log(n.getDate()+"/"+n.getMonth()+"/"+n.getFullYear())
output=== 31/9/2021
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 3 years ago.
Improve this question
I'm working in a JavaScript date picker. I need to parse date by providing month and year. For example, if I'm giving argument as '01/2019', the output should be Tue Jan 1 2019 00:00:00 GMT 05 30. I'm aware this can be achieved by using .toUTCString() only if the argument should be a valid date i.e., it should be in the format of dd mm yyyy. But in my case, the format should be mm yyyy. Is there any JS built-in method to achieve this?
Additional Info: Since date(dd) is not provided, the first date of the input month(mm) can be taken.
01/2019 - Tue Jan 1 2019 00:00:00 GMT 05 30
There are a lot of ways to achieve your goal and using the Date class of JavaScript.
You can pass a string literal date and parse it by instantiating to Date
var date = new Date('2019/1');
console.log(date);
// Expected Output
// Tue Jan 01 2019 00:00:00 GMT+0800 (Malaysia Time)
You can also use the overload function of the Date that separate the year, date, and month parameter.
var date = new Date(2000, 0, 1);
// The order of parameter in here is Date(yyyy, mm, dd)
// The month starts at 0 so
// 0 = January
// 1 = February
// and so on...
// You can also pass string or integer in here
So you can manipulate desired output in here. For cleaner approach, you can get the data one by one, there are already set getter function for year, month, and date. Also for time too!
var date = new Date(2000, 0, 1);
var month = date.getMonth() + 1; // adding 1 because the month is zero based
var year = date.getYear();
var output = month + '/' + year;
console.log(output);
// Expected Output
// 1/2000
Just to complete your requirement why don't you adding static 01/ as a dd in your 01/2019(mm/yyyy) format
var currentDate = "01/2019";
var newDate = "01/"+currentDate;
var printDate = new Date(newDate);
document.write(printDate)
JSFiddle here
Yes, the native Date constructor, just reverse the month and year first:
const reverse = americanDate => americanDate.split('/').reverse().join('.')
const jan2019 = new Date(reverse('01/2019')),
feb2019 = new Date(reverse('2/2019')),
// Date also works with 2 numbers: (month is 0-based)
mar1990 = new Date(1990, 2)
console.log(jan2019, feb2019, mar1990)
I have to compare the date that they want to put in and the current date today, and if they have put in a date that is in the future, then alert them to change the date, otherwise insert the data.
Basically I am having issues comparing the dates. here is my code:
var today = year + '-' + month + '-' + day + ' 00:00:00';
var d1 = new Date(postdate); // postdate = 2014/02/01 ie: 1 Feb 2014
var d2 = new Date(today); // todays date
if(d1>d2){
alert('You cannot post in the future!');
}
But that doesnt seem to work. Where am I going wrong?
Convert the dates into a comparable number, like milliseconds.
if(d1.valueOf()>d2.valueOf()){
alert('You cannot post in the future!');
}
You don't need to create a new variable today.
If by today you are trying to get today's date, you can simply do
var today = new Date();
var d1 = new Date(postdate); // postdate = 2014/02/01 ie: 1 Feb 2014
//----------
var d2 = new Date(year,month,day); // todays date
//----------
if(d1>d2){
alert('You cannot post in the future!');
}
Remember month is 0 based index. So, for december it would be 11.
Compare the dates with the same format, if today is 2014-01-24 00:00:00 then postdate also should be 2014-02-01 00:00:00
Then use + prefix to compare milliseconds:
if(+d1 > +d2){
alert('You cannot post in the future!');
}
This question already has answers here:
Convert dd-mm-yyyy string to date
(15 answers)
Closed 9 years ago.
I want to get day from date. Suppose my date is 03-08-2013 it is in d-mm-yyyy format so I just want to get dand that is 03 from above date so I try this code but it does not work
Note
I want to do it without including any js
var date = '08-03-2013';
var d = new Date(date);
alert(d.getDate());
// 2nd way
alert(date.getDate());
it alert NaN. What is missing in this code?
here is jsfiddel Link Jsfiddle Link
UPDATE
Date parsing in JS (and many languages, for that matter) is problematic because when the input is a date string, it's fairly ambiguous what piece of data is what. For example, using your date (August 3, 2013) it could be represented as
03-08-2013 (dd-mm-yyyy)
08-03-2013 (mm-dd-yyyy)
However, given just the date string, there's no way to tell if the date is actually August 3, 2013 or March 8, 2013.
You should pass your date values independently to guarantee the date is correctly parsed:
var
str = '08-03-2013',
parts = str.split('-'),
year = parseInt(parts[2], 10),
month = parseInt(parts[1], 10) - 1, // NB: month is zero-based!
day = parseInt(parts[0], 10),
date = new Date(year, month, day);
alert(date.getDate()); // yields 3
MDN documentation for Date
You can't know the regional settings of your visitors.
If you know the format of the string is always d-mm-yyyy then just parse the value yourself:
function GetDay(rawValue) {
var parts = rawValue.split("-");
if (parts.length === 3) {
var day = parseInt(parts[0], 10);
if (!isNaN(day))
return day;
}
alert("invalid date format");
return null;
}
Live test case.
Use moment.js. It's parsing ability is much more flexible than the Date class.
var m = moment('03-08-2013','DD-MM-YYYY');
var dayOfMonth = m.date();
Use this it that which you want..
var date = '08-03-2013';
date=date.replace(/([0-9]{2})\-([0-9]{2})\-([0-9]{4})/g, '$3-$2-$1');
var d = new Date(date);
alert(d.getDate());
Thanks
How can I convert a string representation of a date to a real javascript date object?
the date has the following format
E MMM dd HH:mm:ss Z yyyy
e.g.
Sat Jun 30 00:00:00 CEST 2012
Thanks in advance
EDIT:
My working solution is based on the accepted answer. To get it work in IE8, you have to replace the month part (e.g. Jun) with the months number (e.g. 5 for June, because January is 0)
Your date string can mostly be parsed as is but CEST isn't a valid time zone in ISO 8601, so you'll have to manually replace it with +0200.
A simple solution thus might be :
var str = "Sat Jun 30 00:00:00 CEST 2012";
str = str.replace(/CEST/, '+0200');
var date = new Date(str);
If you want to support other time zones defined by their names, you'll have to find their possible values and the relevant offset. You can register them in a map :
var replacements = {
"ACDT": "+1030",
"CEST": "+0200",
...
};
for (var key in replacements) str = str.replace(key, replacements[key]);
var date = new Date(str);
This might be a good list of time zone abbreviation.
You can use following code to convert string into datetime:
var sDate = "01/09/2013 01:10:59";
var dateArray = sDate.split('/');
var day = dateArray[1];
// Attention! JavaScript consider months in the range 0 - 11
var month = dateArray[0] - 1;
var year = dateArray[2].split(' ')[0];
var hour = (dateArray[2].split(' ')[1]).split(':')[0];
var minute = (dateArray[2].split(' ')[1]).split(':')[1];
var objDt = new Date(year, month, day, hour, minute);
alert(objDt);