posts = [{"content":"content1",
"created":"2013-12-27T14: 15: 27.747Z"},
{"content":"content2",
"created":"2013-12-27T14: 15: 02.956Z"}]
How to check posts[0] and posts[1] was created in the same day or not with Angularjs?
Angular doesn't really have a built in way to compare dates, but it can be done in conjunction with angular.
http://jsfiddle.net/TheSharpieOne/LxTGd/1/
This will compare if the day, month, and year are the same, determining if the 2 dates are on the same day (time is irrelevant).
$scope.sameDay = function(date1,date2){
return date1.substring(0,10) === date2.substring(0,10);
}
This functionality would ideally be made into some sort of directive. But this is just a basic example, a directive example can be made if required.
javascript cannot parse ISODATE which contain spaces:
post[0].created.replace(/\s/g,'')
That's how you compare dates:
(new Date(post[0].created).toDateString) === (new Date(post[1].created).toDateString)
Related
I'm struggling for hours with this seemingly trivial issue.
I have a antd datepicker on my page.
Whenever I choose a date, instead of giving me the date I chose, it gives me a messy moment object, which I can't figure out how to read.
All I want is that when I choose "2020-01-18", it should give me precisely this string that the user chose, regardless of timezone, preferably in ISO format.
This is not a multi-national website. I just need a plain vanilla date so I can send it to the server, store in db, whatever.
Here are some of my trials, so far no luck:
var fltval = e;
if (isMoment(fltval)) {
var dat = fltval.toDate();
//dat.setUTCHours(0)
fltval = dat.toISOString(); // fltval.toISOString(false)
var a = dat.toUTCString();
//var b = dat.toLocaleString()
}
It keeps on moving with a few hours, probably to compensate for some timezone bias
UPDATE 1:
the datestring is data-wise correct. But its not ISO, so I cant use it correctly. I might try to parse this, but I cannot find a way to parse a string to date with a specific format.
UPDATE 2:
I also tried adding the bias manually, but for some reason the bias is 0
var dat = pickerval.toDate()
var bias = Date.prototype.getTimezoneOffset()// this is 0...
var bias2 = dat.getTimezoneOffset()// and this too is 0
var d2 = new Date(dat.getTime()+bias)
var mystring= dat.toISOString() //still wrong
Thanks!
Javascript date functions can be used,
I assume you are getting in 2022-01-03T11:19:07.946Z format then
date.toISOString().slice(0, 10)
to 2022-01-03
There are 2 ways to get the date string:
Use the moment.format api:
date.format("yyyy-MM-DD")
Use the date string that is passed to the onChange as second parameter
Here is a Link.
I am assuming your code snippet is inside the onChange method. This gives you a moment and a date string to work with (the first and second parameters of the function respectively).
You have a few options. You could set the format prop on the DatePicker to match the format of the string you want. Then just use the date string. Or you can use the moment object as Domino987 described.
I'm trying to set up the current time of a process but I just want to set up the day not the time/seconds like Tue, 28 Sep 2021.
I know 2 ways of doing dates and that would be:
new Date().toTimezoneString() and firebase.firestore.FieldValue.serverTimestamp() both of them includes time though.
and I know that if I set up Date() alone it store the data as a date format instead of a string.
Extra: can it be set up in other languages as well ?
Use Intl ( Internationalization API ) to format your dates. It's supported by all browsers and provides a comprehensive api to suit your date and time formatting needs.
Here is the doc for the method you need:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat
For your use-case where you dont want to show time, you simply do not pass timeStype in the options parameter to the Intl formatter. Example would be
const date = new Date();
const formattedDate = new Intl.DateTimeFormat('en-US', { dateStyle: 'medium' }).format(date)
I am trying to implement a date-sorting method for a news list that works across browsers. However, the one method I have tried that works well, only works in Chrome:
origArt.sort(function(a, b) {
var dateA = new Date(a.date), dateB = new Date(b.date);
return dateB - dateA;
});
I also tried this code, suggested in other sorting questions as a possible solution:
origArt.sort(function(a,b){
return (b.date > a.date) ? 1 : (b.date < a.date) ? -1 : 0;
});
But, because the dates in my JSON vary from year; month & year; and month, year and day; the news list sorts in reverse
alphabetical order, not reverse chronological order.
They are strings such as: "2018.", "April 8, 2015.", and "September 2015."
Your problem is that those aren't valid date strings. From some quick testing, Chrome appears to be doing a bit of guesswork as to what you mean, but the other browsers aren't.
Chrome:
new Date("2018.")
// Mon Jan 01 2018 00:00:00 GMT-0800 (Pacific Standard Time)
Firefox:
new Date("2018.")
// Invalid Date
And since Invalid Date > Invalid Date is always false, it isn't sorting anything. It's not just a matter of removing the period either, since "September 2015" also works in Chrome but fails in Firefox.
Ideally, you should fix your JSON or whatever code it's being generated from to use parseable date strings. If that's not an option, you'll probably have to write a custom parsing function that handles all the possible formats you might get, or see if a library like Moment.js can handle it for you.
To avoid label of duplicate here's a brief summary of all what i did.
After spending hours of googling to calculate the difference between two dates I came across here and here where, i was convinced to use NodaTime to get difference in terms of years,months and days.My application needs accuracy to calculate pension.I used datetimepicker to get the date value from form and then i use Date.cs from here to extract the date in dd/mm/year and then insert it into database.To subtract the two dates using Period.Between(date1, date2, PeriodUnits.Years).Years how should i pass datetimepicker to it?
Here's what Jon Skeet said: "you can use LocalDateTime.FromDateTime and then use the Date property to get a LocalDate".
How should i get a complete rid of time while inserting in database as well as finding the difference while using datetimepicker instead of Datetime.
Update:
//Date of appointment
var d_app = LocalDateTime.FromDateTime(dateTimePicker1.Value).Date;
//Date of retirement
var d_ret = LocalDateTime.FromDateTime(dateTimePicker2.Value).Date;
var years=Period.Between(d_app,d_ret,PeriodUnits.Years).Years;
var months = Period.Between(d_app, d_ret, PeriodUnits.Months).Months;
var days = Period.Between(d_app, d_ret, PeriodUnits.Days).Days;
MessageBox.Show(years.ToString()+" years"+months.ToString()+"months "+days.ToString()+"days");
Giving the code datetimepicker1.value as 2/21/1990 (d_app) and datetimepicker2.value as 3/09/2015(d_ret) it returned 25 yrs 300months 9147
days.
What am i doing wrong?
You're performing three separate computations here. You only need one:
var appointment = LocalDateTime.FromDateTime(dateTimePicker1.Value).Date;
var retirement = LocalDateTime.FromDateTime(dateTimePicker2.Value).Date;
var difference = Period.Between(appointment, retirement);
MessageBox.Show(string.Format("{0} years {1} months {2} days",
difference.Years, difference.Months, difference.Days));
This is input format:
yyyy:MM:dd'T'HH:mm:ss'Z' (Coming as a string from json service)
Required output format:
dd-mmm-yyyy
I have tried with {{txnDate | date:'dd-mm-yyyy'}}
but it is not working..
What is the format you are following for your date?
A quick var a = new Date(); a.toISOString(); in console will give you something like "2015-02-19T13:30:13.347Z". The formatted string you are receiving is not following any standard and I am afraid parsing it to date will result in Invalid Date in most of the browsers.
So you can either
Get your Date in proper format.
Make the best use of whatever is available. You can use split to break your string into individual components.
Something like:
var a = "yyyy:MM:dd'T'HH:mm:ss'Z'" //Replace with actual string
b=a.split(':') will result in ["yyyy", "MM", "dd'T'HH", "mm", "ss'Z'"] giving you year and months in b[0] and b[1].
For date, you can use b[2].substring(0,2) to give you dd.
You have all date components(apart from time components, which you don't need anyway) as string.
Either use them directly(as a string) or make a date object using these components(since you want month in MMM format).
$scope.txnDate = new Date(b[0]+'/'+b[1]+'/'+b[2].substring(0,2));
I am sure there are more ways to optimize this. Comment if this doesn't work for you, will try to elaborate more.