date-format | 易学教程

How does Date.toLocaleDateString() work?

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问题 I've to represent the date with local user's configurations. Follows the MDN description: The toLocaleDateString method relies on the underlying operating system in formatting dates. It converts the date to a string using the formatting convention of the operating system where the script is running. For example, in the United States, the month appears before the date (04/15/98), whereas in Germany the date appears before the month (15.04.98). I do this: var date = new Date (); console.log

Excel 2010 - change US dates to UK format

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问题 I have imported a CSV file with 2 long columns of dates. These dates are in the US format Aug/28/2013 and I want them to be in the standard UK dd/mm/yyyy format. I have tried formatting the cells as US dates and then converting them to number-only formats, and various other permutations within the Date format box, but with no success. Can anyone rid me of these awful US dates please? 回答1: Another solution without using a formula: Select the relevant columns Choose Data → Text to Columns…

How to make fmt:formatDate work for form:input

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问题 I have a jstl loop and I want to format the date of a form:input. I have tried many permutations of some of the suggestions that I've fond online but I just cannot get it to work.. Can someone please have a look? I've included the full loop for context but the problem lies in the last <td></td> block. <c:forEach items="${valueTransactionsModel.transactions}" var="transaction" varStatus="loopStatus"> <tr class="${loopStatus.index % 2 == 0 ? 'even' : 'odd'}"> <spring:message code=

Ruby parse date string [closed]

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问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I need to parse a date string mentioned below to std date format. Is there a built in function in ruby that would parse something like, December 09, 2011 to 2011-12-09 回答1: Date.parse is already mentioned. I prefer Date.strptime . This methods is a reverse strftime . Date.parse is a (maybe good) guess, with Date

JSTL LocalDateTime format

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问题 I want to format my Java 8 LocalDateTime object in "dd.MM.yyyy " pattern. Is there any library to format? I tried code below but got conversion exception. <fmt:parseDate value="${date}" pattern="yyyy-MM-dd" var="parsedDate" type="date" /> Is there any tag or converter for LocalDateTime class in JSTL? 回答1: Actually I had the same problem and ended up forking the original Joda Time jsp tags to create Java 8 java.time JSP tags. With that library your example would be something like this:

Angular JS - Date changes when submitting to $http - Timezone issue

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问题 I am having a strange problem where a Date changes when it is passed to API through $http.put, I suspect a timezone issue: Datepicker triggers ng-change event - console.log: Tue Jun 10 2014 00:00:00 GMT+0100 (GMT Summer Time) Passed to API using Angular $http.put... When it hits Fiddler: StartDate=2014-06-09T23:00:00.000Z As you can see the date changes from 10th June to 9th June. How can I stop this change of date? Is it the timezone causing the change? Both the API and client side are

How to add weeks to date using javascript?

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问题 Javascript definitely isn't my strongest point. I've been attempting this for a couple of hours now and seem to be getting stuck with date formatting somewhere. I have a form where a user selected a date (dd/mm/yyyy) and then this date will be taken and 2 weeks will be added to it and then date will be copied to another form field. My latest attempt below isn't even adding a date yet just copying the selected date in one form field to another, if I select '03/02/2012', it outputs 'Fri Mar 02

Avoid Empty Catch Blocks When Expecting Exception

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问题 I am trying to parse dates using SimpleDateFormat . As my service takes in multiple date formats, I have adopted this approach: String[] formats = { "yyyy-MM-dd'T'HH:mm:ss.SSSZ", "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", "yyyy-MM-dd'T'HH:mm:ss.SSS-HH:mm", "EEE MMM dd HH:mm:ss Z yyyy"}; for (String format : formats) { try { return new SimpleDateFormat(format).parse(dateString); } catch (ParseException e) {} } return null; The rationale behind the try-catch is that if the current date format couldn't

How can I get yesterday's date without using Calendar in Java and without a timestamp just the date? [duplicate]

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问题 This question already has answers here : How to check if a date Object equals yesterday? (8 answers) Closed 3 years ago . I have wrote a method to get the current date in the format of yyyy-MM-dd and want to be able to also create another method for getting yesterday's date, the day before the current date. All this needs is the date and not the timestamp. I am not trying to use Calendar as well. I have set up the current date this way: public class DateWithNoTimestamp { private static final

ORMLite query date format issue

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I want to convert sqlite query to Ormlite query. SELECT * FROM Test where strftime('%m-%Y',Date)='11-2001' I could not format date column like above query. How to format Date column in Ormlite as MM-yyyy ? Thanks. If that is the exact SQL that you want to use then you can use the Where.raw(...) method: QueryBuilder<Test, Integer> qb = testDao.queryBuilder(); qb.where().raw("strftime('%m-%Y',Date) = '11-2001'"); List<Test> results = qb.query(); However, this only seems to work if the date field is stored as a DATE_STRING type: @DatabaseField(dataType = DataType.DATE_STRING) Date date; The issue