I am accessing the SharePoint 2010 List WCF data service via DataJS and getting back date fields as /Date(1363708765000)/ does anyone have any idea how I can process this to display a proper date?
Note: I am posing here as I suspect this is a DataJS question more than a peculiarity of the ListData.svc in SharePoint.
What you're receiving back is a Unix epoch, which represents the number of milliseconds that have elapsed since Jan. 01 1970. Fortunately, JavaScript also uses this as its epoch, meaning you can create a new Date object using elapsed milliseconds as your input parameter:
var myDate = new Date(1363708765000);
console.log("UTC:" + myDate.toUTCString());
// outputs UTC: Tue, 19 Mar 2013 15:59:25 GMT
Of course, you'll have to parse out the integer portion of the date value you're getting back before you can use it to initialize a date. A reusable function might look like this:
function parseJsonDate( sDate ) {
var b, e, i;
b = sDate.indexOf('(');
e = sDate.indexOf(')');
i = sDate.substring(b+1,e);
if (isNaN(i)) { return null };
return new Date(parseInt(i));
}
Related
I made a few functions with GoogleSheets using AppsScripts for simple task a few times in previous years. I always had problems when taking dates from cells/ranges and processing them, but somehow alwaays found a workaround, so that I did not have to deal with it. Well, this time I can not find a workaround, so I will try to explain my problems with the following code:
function getDates(){
var s = SpreadsheetApp.getActiveSpreadsheet();
var sht = s.getSheetByName('Dates');
var date = sht.getRange(2,1).getValues();
Logger.log(date[0][0]); //output is Tue Jun 08 18:00:00 GMT-04:00 2021
var datumFilter= Utilities.formatDate(date[0][0], "GMT+1", "dd/mm/yy");
Logger.log(datumFilter); //output is 08/00/21
var outrng = sht.getRange(25,1);
outrng.setValue(date);
}
The first targeted cell ('var date') has a value of "9.6.21" in the spreadsheet. The cell is formatted as a date and it opens a calendar when double-clicked. When I set the new cells values (with 'outrng.setValue(date);'), the result is OK, with the same date as in the original cell.
But I do not need to simply transfer the values, I want to implement them in some loops and I have no idea how to simply get the date in the same format or at least the same date in the script as it is in the cell. As you can see from the logger, the values there are different. A simple d/m/yy format would be sufficient.
My spreadsheet settings are set to my local time (Slovenia, GMT+1).
I am guessing that I am missing some basics here. I have spent many hours trying to understand it, so any help is highly appreciated!
Cooper already answered all your questions in the comment. I'd like to add on and show you an example on what it would like and add some modifications.
Code:
function getDates() {
var s = SpreadsheetApp.getActiveSpreadsheet();
var sht = s.getSheetByName('Dates');
// get last row of the sheet
var lastRow = sht.getLastRow();
// get your sheet's timezone
var timezone = SpreadsheetApp.getActive().getSpreadsheetTimeZone();
var output = [];
// getValues is mostly used for multiple cells returning a 2D array
// use getValue for single cells to return its actual value
// but since function name is getDates, I assume column A is all dates
// so we fetch the whole column (A2:A[lastRow]) except the header
var dates = sht.getRange("A2:A" + lastRow).getValues();
// for each date on that column, we format the date to d/M/yy
// m/mm = minute
// M/MM = month
dates.forEach(function ([date]){
Logger.log(date);
var datumFilter= Utilities.formatDate(new Date(date), timezone, "d/M/yy");
Logger.log(datumFilter);
// collect all dates in an array
output.push([datumFilter]);
});
// assign all the dates in the array onto range B2:B
sht.getRange(2, 2, output.length, 1).setValues(output);
}
Sample data:
Logs:
Output:
Note:
The output on sheets is not equal to logs due to the formatting of my sheet.
I'm trying to give a span element a id from milliseconds.
var span_id = new Date();
$('#query').append('<span id="'+span_id+'"></span><br>');
When i inspect the span element in the console it shows like this:
<span id="Tue Feb 09 2021 11:53:54 GMT+0100 (centraleuropeisk normaltid)"></span>
How can i save the time in milliseconds.. so that the span id will be a long number.. like: 1239484738329303
I've tried:
var d = new Date();
var n = d.getMilliseconds();
But this will only give me the milliseconds right now.. separated from the minutes, hours and date.. so it will end up short like: 281
This is not Chrome-only behaviour. Casting a date object to a string (which, by using it as an ID attribute, is what you're doing), well implicitly render it to its full textual representation.
Instead, you need the static Date.now();
Date.now(); //1612868588100
Say the EPOCH timestamp I received from an API is 1595216214.
It is equivalent to Monday, July 20, 2020 3:36:54 AM (GMT).
My interest is time value only (Ignoring the date/day value)? How can I code in Dart?
Also, how can I convert it into my time zone (E.g.: GMT+8)
you can use DateTime class to do that. Like this:
var dateUtc = DateTime.fromMillisecondsSinceEpoch(myAPIEpochTimeInMilliseconds, isUtc: true);
var dateInMyTimezone = dateUtc.add(Duration(hours: 8));
var secondsOfDay = dateInMyTimezone.hour * 3600 + dateInMyTimezone.minute * 60 + dateInMyTimezone.second;
NOTE:
If you are doing this for the web, although Dart does support 64+ bit numbers, javascript only takes 32-bit integers. So, use the BigInt class for big numbers tha exceeds 32-bit representation.
DateTime doesn't have an inherent timezone to be defined on the class. Is either the local (machine) time or utc Time. So, it is recomended to always use utc and add timezone offset when needed. Or just create a wrapper.
I'm reading an Excel spreadsheet using JXL and Groovy like this:
WorkbookSettings settings = new WorkbookSettings();
settings.encoding = "Cp1252"
settings.locale = new Locale("pt", "BR")
Workbook workbook = Workbook.getWorkbook(is, settings)
Sheet sheet = workbook.getSheet(0)
And then I have a cell in Excel which value is 09/01/2013 (dd/mm/yyyy). But then, when I retrieve cell contents, JXL automatically does some conversion and gives this back at me:
"09/01/13" == sheet.getCell(col, line).contents?.trim()
But then, when I cast the Cell to a DateCell, the Date representation of "09/01/13" becomes Jan 8, 2013 (!):
DateCell dc = ((DateCell) sheet.getCell(col, line))
println "date from JXL: ${dc.date}" // prints Tue Jan 08 22:00:00 BRST 2013
Would anyone have any ideas about how to fix this? If I could just retrieve the actual cell contents directly (09/01/2013), then I could do all the conversion stuff by myself.
Thanks!
From: http://www.andykhan.com/jexcelapi/tutorial.html#dates
When displaying dates, the java.util package automatically adjusts for the local timezone. This can cause problems when displaying dates within an application, as the dates look as if they are exactly one day previous to that which is stored in the Excel spreadsheet, although this is not in fact the case.
...
The easiest way to work around this (and the method used internally by the getContents() method of a jxl.DateCell) is to force the timezone of the date format as follows:
TimeZone gmtZone = TimeZone.getTimeZone("GMT");
SimpleDateFormat format = new SimpleDateFormat("dd MMM yyyy");
format.setTimeZone(gmtZone);
DateCell dateCell = ....
String dateString = format.format(dateCell.getDate());
I have a spreadsheet which we use to log our work. I have read the date's column from the sheet into an array so that I can perform actions/calculations on them. This did not work for me as I noticed in the debugger that the array which holds the dates have values different formats of the date values. For instance, some display as "16/11/2012" and some as (new Date(1355184000000)).
Can someone point a way to convert them all to a unified format so that I can work with them?
Thanks
How do you want your dates to be shown? Do you want them to be 'date objects' or strings? the value you show in your code (new Date(1355184000000)) correspond to Mon Dec 10 16:00:00 PST 2012
You can check that by using Logger.log(new Date(1355184000000))
On the contrary "16/11/2012" is most probably not a date but a string...(note : strange that you use a "day/month/year" sequence since I saw on your profile you are in UK, I thought you'd use mm/dd/yyyy instead).
Since you said you need to make some calculations on these items I guess that they all should be converted to date objects for using them in you script.
I'd suggest you look at some documentation on date object to see exactly how this should be done without generating errors. Don't forget that dates in javascript are always dates and time in hh:mm:ss and milliseconds. The integer value you saw was the number of milliseconds since January the first in 1970 ;-)
You could also do a search on dates in this forum and find quite a lot of interresting informations.
Here is a small function to illustrate :
function playWithTime(){
Logger.log('ref date = '+new Date(0))
var example = "june 30, 2013 23:59:00"
Logger.log(example+' = '+ new Date("june 30, 2013 23:59:00"))
Logger.log(example+' = '+ new Date("june 30, 2013 23:59:00").getTime()+' mS')
}
It will show this in the Logger :
ref date = Thu Jan 01 1970 01:00:00 GMT+0100 (CET)
june 30, 2013 23:59:00 = Sun Jun 30 2013 23:59:00 GMT+0200 (CEST)
june 30, 2013 23:59:00 = 1372629540000 mS
btw, note that the Logger returns values in different ways, depending on the daylight saving in your timezone... I'm in Belgium and june is in 'summer' time (CEST). It can also be shown in PDT or PST which is the timezone of Google servers. You can't rely on the logger to be constant (!!) but that's another story ;-)
EDIT : If your date strings are in the form dd/mm/yyyy then you should probably reorder it like in this code :
function playWithTime2(){
Logger.log('original date string in UK format = 16/11/2012')
var d = "16/11/2012".split('/');
var d_ordered=d[1]+'/'+d[0]+'/'+d[2]
Logger.log('becomes '+d_ordered+' = '+new Date(d_ordered))
}
Which returns
original date string in UK format = 16/11/2012
becomes 11/16/2012 = Fri Nov 16 2012 00:00:00 GMT+0100 (CET)