I am using moment.js and getting this error:
Deprecation warning: value provided is not in a recognized RFC2822 or
ISO format. moment construction falls back to js Date(), which is not
reliable across all browsers and versions. Non RFC2822/ISO date
formats are discouraged and will be removed in an upcoming major
release. Please refer to
http://momentjs.com/guides/#/warnings/js-date/ for more info.
Arguments: [0] _isAMomentObject: true, _isUTC: false, _useU
In my react component I have:
const sortTasks = (first, second) => moment(first.endDate).diff(second.endDate);
The first.enddate=‘20 dec 2018’
How can I avoid this warning in the console?
One alternative is to inform moment.js about the date format used, by providing a second parameter to the moment function.
The format of "20 dec 2018" is DD MMM YYYY".
If you have both dates in the same format, you should write
const sortTasks = (first, second) =>
moment(first.endDate, "DD MMM YYYY").diff(moment(second.endDate, "DD MMM YYYY"));
Note that the other date is also explicitly transformed to a moment, since it is expressed in a non-standard format.
You can check the details in the moment.js documentation about parsing.
If you want to find out the difference expressed in days, or in e.g. years / months / days, you can use moment.duration. Check the moment.js documentation about this feature.
E.g. to obtain the number of years, months and days between two dates, say date1 and date2, we could proceed as follows (assuming date1 is before date2):
const theDuration = moment.duration(date2, date1);
const yearsElapsed = theDuration.years();
const monthsElapsed = theDuration.months();
const daysElapsed = theDuration.days();
Hope it helps - Carlos
Related
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'm new with React. I was looking for information for several days to no avail. So I decided to ask you my stupid question.
I have problem with transforming date from DatePicker to date format which than I can use in get request.
I use DatePicker from this https://www.npmjs.com/package/react-datepicker
Sample correct api call:
localhost:8080/api/measurement/12374?date=2020-12-13 12:00
but date from DatePicker look like:
Sun Dec 13 2020 12:00:00 GMT+0100 (Central European Standard Time)
I play with date for example:
let x = new Date();
let x1 = x.toLocaleDateString() + " " + x.toLocaleTimeString();
output: 23/12/2020 09:29:16
but still I have problem with date format and I also don't know how to pass this date correclty to get method, because http request have % instead "space"
http://localhost:8080/api/measurement/12120?date=23/12/2020%2009:48:15
but when I use string as date it work fine and download data:
let value = "12374";
let date = "2020-12-13 12:00";
const request = "http://localhost:8080/api/measurement/" + value + "?date=" + date;
Can someone explain me how can I convert date from DatePicker to format like this 2020-12-13 12:00 and then use it in get method?
I will be very grateful for any answer!
Thank you ;)
you can use momentjs for this task to format date.
https://www.npmjs.com/package/moment
import moment from 'moment'
let date = new Date();
let result = moment(date).format('DD/MM/YYYY hh:mm')
output: 23/12/2020 02:23
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.
I have a date formatted as a ISO-8601 string: overview.startTime = "2017-05-09T08:00:00Z"
I want to display this on my page and I have used the following code:
Dagens arbetspass {{overview.startTime | date:'dd-MMM'}}
This is displayed as "Dagens arbetspass 09-May". My problem is that this is a Swedish site, and in Sweden we don't start the month names with an uppercase character. Also May is written "maj" (j in the end and not y). I tried to add the timezone like this
Dagens arbetspass {{overview.startTime | date:'dd-MMM':'Europe/Stockholm'}}
but that did not change the output. In fact, most months are spelled differently in Swedish. Any suggestions?
Just use the javascript "toLocaleDateString" method to resolve the concern. The method takes two arguments which are 'locale' and 'options'.
Locale will be "sv-se" for swedish.
Options will provide the format to your string. For example -var options = { weekday: "long", year: "numeric", month:long",day:"numeric" };
var d = new Date("2017-05-09T08:00:00Z");
date.toLocaleDateString("sv-se", options)
Here's a plunker https://plnkr.co/edit/G2IL5Zv0OAcVRMZS9HB7
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.