given the following string: 2022-11-23, how can I use luxon to format it to be 23-11-2022
Using Luxon, you can parse your input string using fromISO (api-docs) and then format to your desired format using toFormat (api-docs) See Table of tokens to get details on how to match part of the datetime with its cooresponding token.
Example:
const DateTime = luxon.DateTime;
console.log(DateTime.fromISO("2022-11-23").toFormat("dd-MM-yyyy"));
<script src="https://cdn.jsdelivr.net/npm/luxon#3.0.4/build/global/luxon.min.js"></script>
In your case, you can also avoid using Luxon and set up some string manipulation like the following:
let parts = "2022-11-23".split('-');
console.log(parts[2] + '-' + parts[1] + '-' + parts[0]);
Related
I want to fetch the date and time when the report is generated in the form of ddMonyyyy-hhmm.
Currently I am using this code
string timeStamp = DateTime.Now.ToString("dd-mmm-yyyy"); DateTime date = DateTime.Now; timeStamp += "_" + Convert.ToString(date.Hour) + Convert.ToString(date.Minute);`` sFileName =sFileName+ timeStamp + ".xls";
But here the date and year are not getting fetched correctly.
Please help.
You can use hours and minutes in Format and it will take literals and just use them. Here are a couple examples. See more here DateTime.ToString Method
var result = DateTime.Now.ToString("dd-mmm-yyyy h:mm tt");
Standard Output:
07-17-2023 10:17 AM
var result = DateTime.Now.ToString("dd-mmm-yyyy_hhmm");
Standard Output:
07-19-2023_1019
var result = DateTime.Now.ToString("ddmmmyyyyhhmm");
Standard Output:
072120231021
As an aside, you may want to use UtcNow, not Now, unless all your users are in the same timezone or you wanted the time from the server.
Quite simply, this is my code:
http://jsfiddle.net/NibblyPig/k9zb4ysp/
moment.locale('en-GB');
var d = moment('22/12/2019');
alert(d);
I would expect this to parse, however it says invalid date.
I have referenced moment.js and the locale/en-gb.js
I'm writing a global control so the date may come in in a variety of formats.
If I put in a variety of American dates they all work, for example 12/12/2019, 12/12/2019 23:04 etc.
However the locale command does not appear to do anything and I cannot get a single date to parse. What am I doing wrong?
You need to pass the format as the second argument for moment(), as discussed here:
moment.locale('en-GB');
var d = moment('22/12/2019', 'DD/MM/YYYY');
alert(d);
https://jsfiddle.net/a4gu6kfz/
From the docs:
If you know the format of an input string, you can use that to parse a
moment.
moment("12-25-1995", "MM-DD-YYYY");
I think that there is no need to write your own complex logic to parse your input, you can use moment(String, String) (or moment(String, String[], String, Boolean)), as suggested by Thales Minussi's answer.
moment(String) is the good choice only if your input is in ISO 8601 or RFC 2822 compliant form.
In your case, you can probably use Localized formats listed in the format section of the docs. If you have a list of possible formats, I think that the best choice is tho use moment(String, String[]).
Please note that, by default: Moment's parser is very forgiving, so using default Forgiving Mode will handle "any" character as separator.
Here a live sample:
moment.locale('en-GB');
['22/12/2019', '22/12/2019 15:00',
'22-12-2019', '22-12-2019 15:00',
'1-3-2019', '1-12-2019', '22-1-2019'
].forEach((elem) => {
var d = moment(elem, 'L LT');
console.log(d.format());
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/locale/en-gb.js"></script>
Still hoping there's a nice moment js way to do this but in the meantime I just bashed this together. Pretty nasty and it will probably go wrong in 80 years or so.
http://jsfiddle.net/NibblyPig/k9zb4ysp/22/
var a = "23/03/19 12:42:21.123";
var datePart = a.substring(0, a.indexOf(" "));
var timePart = a.substring(a.indexOf(" ") + 1);
var dateParts = datePart.split("/");
if (dateParts[0].length == 1) dateParts[0] = "0" + dateParts[0];
if (dateParts[1].length == 1) dateParts[1] = "0" + dateParts[1];
if (dateParts[2].length == 2) {
var threshold = parseInt(new Date().getFullYear().toString().substring(2)) + 10;
if (parseFloat(dateParts[2]) > threshold ) {
dateParts[2] = "19" + dateParts[2];
}
else
{
dateParts[2] = "20" + dateParts[2];
}
}
alert (parseFloat(dateParts[2] + dateParts[1] + dateParts[0] + timePart.replace(/:/g, "").replace(/\./g, "")));
This won't solve every usecase, but in your specific example if you want just a simple date (with no time component) auto-parsed in UK format you can just use the 'L' format string having set the locale to 'en-GB'
Your example with this change (your jsfiddle also)
moment.locale('en-GB');
// just pass 'L' i.e. local date format as a parsing format here
var d = moment('22/12/2019', 'L');
alert(d);
It's quite nice because you get the auto parsing of various formats you wanted for free. For instance this works just the same:
var d = moment('22-12-2019', 'L');
You can return a date using moment.js in a desired format -
return moment(aDateVar).format('DD/MM/YYYY');
How do I format a date as iso 8601 using moment.js but without the dashes and colons and setting the time to 0 e.g. if I have a date like this:
2016-10-08T09:00:00Z
How do I format as :
20161008T000000Z
Doing moment(date).toISOString() gives 2016-10-08T09:00:00.000Z which is not what I want.
You can simply parse your input into a moment object and use startOf to set time to 00:00:00. Then you can use format method to get a string in your custom format.
Here there is a working example using a string input, you can use the same code also if your input is a javascript Date object.
// Input date as string
var s = '2016-10-08T09:00:00Z';
// Reset time part
// var m = moment(s).startOf('day'); // no UTC
var m = moment.utc(s).startOf('day'); // UTC mode
// Format using custom format
console.log(m.format('YYYYMMDD[T]HHmmss[Z]'));
<script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/2.15.1/moment.min.js"></script>
I'm developing a custom validator of a date input in my workflow form and I get a null after parsing a date this is what I done:
// check dates can be parsed
str_expiryDate = field.form.prop_wfbxTestWorkFlow_NfDate.value;
console.log("Non conformite"+str_expiryDate);
str_reminderDate = field.form.prop_bpm_workflowDueDate.value;
console.log("echeance"+str_reminderDate);
Alfresco.logger.warn("Expiry Date: " + str_expiryDate + " | Reminder Date: " + str_reminderDate);
d_expiryDate = Date.parse(str_expiryDate);
console.log("nfDate"+str_expiryDate);
d_reminderDate = Date.parse(str_reminderDate);
console.log("Date echéance"+d_reminderDate);
and then i get this in console:
Non conformite2013-06-21T00:00:00.000+01:00 echeance2013-06-09T00:00:00.000+01:00
nfDatenull
Date echéancenull
How I can parse these two dates and then compare it? .thanks
Use Alfresco.util.fromISO8601(date)
According to the client-api docs
Convert an ISO8601 date string into a JavaScript native Date object
You are parsing the "value" of a date, not the date itself.
The best way to compare is, imho, using the format YYYYMMDD, and than compare it as a number.
Something like this (there is sure a far more elegant way to do that, but at this time it's the only one that got me):
var indexDate=str_expiryDate.indexOf("-");
var dayDate=str_expiryDate.substring(0, 2);
var monthDate=str_expiryDate.substring(3, 5);
var yearDate=fromData.substring(6, str_expiryDate.length+1);
int dataNew=yearDate+monthDate+dayDate;
and than compare the two dates value.
Obviously check if the index value are correct, I didn't double checked them.
Hope il helps.
XML
<CalendarFairs>
<CalendarFair>
<DateStart>2011-04-05T00:00:00</DateStart>
<DateEnd>2011-04-09T00:00:00</DateEnd>
<Title>aaaa</Title>
<IdExecutive>1</IdExecutive>
</CalendarFair>
<CalendarFair>
<DateStart>2011-04-16T00:00:00</DateStart>
<DateEnd>2011-04-19T00:00:00</DateEnd>
<Title>bbb</Title>
<IdExecutive>2</IdExecutive>
</CalendarFair>
<CalendarFairs>
Code
var elements = from element in doc.Descendants("CalendarFair")
where DateTime.Parse (element.Elements ("DateStart").ToString())==DateTime.Now
select new
{
dateStart = element.Element("DateStart").Value,
dateEnd=element.Element("DateEnd").Value,
title=element.Element("Title").Value,
idExcutive = element.Element("IdExecutive").Value ,
};
foreach (var item in elements)//send this error
{}
System.FormatException: The string was not recognized as a valid DateTime. There is a
unknown word starting at index 0.
why error?
Try to change it as follows:
var elements = from element in doc.Descendants("CalendarFair")
let start = element.Element("DateStart").Value
where DateTime.Parse (start)==DateTime.Now.Date
select new
{
dateStart = start,
dateEnd=element.Element("DateEnd").Value,
title=element.Element("Title").Value,
idExcutive = element.Element("IdExecutive").Value ,
};
EDIT: based on the XML you have posted the query above works pretty well. Try to test it with this input:
<CalendarFairs>
<CalendarFair>
<DateStart>2011-04-05T00:00:00</DateStart>
<DateEnd>2011-04-09T00:00:00</DateEnd>
<Title>aaaa</Title>
<IdExecutive>1</IdExecutive>
</CalendarFair>
<CalendarFair>
<DateStart>2011-03-20T00:00:00</DateStart>
<DateEnd>2011-04-19T00:00:00</DateEnd>
<Title>bbb</Title>
<IdExecutive>2</IdExecutive>
</CalendarFair>
</CalendarFairs>
Note that I have inserted today's start date. Actually I think the result was empty just because there weren't entries with actual date.
It sounds like one or more of your input <DateStart> strings is not in a valid DateTime format.
Can you post some sample input XML?
It may be that you need to provide the date format using ParseExact - http://msdn.microsoft.com/en-us/library/w2sa9yss.aspx