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  4. How to get today's date

How to get today's date

Scheduled Pinned Locked Moved The Weird and The Wonderful
csharprubytutorial
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  • K Keith Barrow

    I've inherited one of the worst code-bases I've ever seen in 9 years of .netting. I've spotted this little gem scattered like gingerbread-crumbs thoughout the code:

    DateTime date = DateTime.Parse(DateTime.Now.Date.ToString("dd/MM/yyyy"));

    To make it worse this code is repeated not just in different classes but in the same class :wtf: To add piquancy, the variable being set is just called date, not today or todaysDate or something bit more sensible, so I had to work out what it did. I still can't work out why, I only know it makes my eyes bleed....

    M Offline
    M Offline
    mateotrek
    wrote on last edited by
    #16

    Simply amazing! Thanks for sharing, I had a good laugh.

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    • L leppie

      TimeSpan keyDays = new TimeSpan(this.FooLicenceKeyHolder.FooLicence.Licence.LicenceExpiryDate.Ticks);
      TimeSpan nowDays = new TimeSpan(System.DateTime.Now.Ticks);

      int daysLeft = keyDays.Days - nowDays.Days;

      xacc.ide
      IronScheme - 1.0 beta 4 - out now!
      ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

      D Offline
      D Offline
      David Skelly
      wrote on last edited by
      #17

      For a moment there I thought you were measuring your licence expiry in ticks. "This evaluation licence will expire in 342,827,400 nanoseconds."

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      • L leppie

        TimeSpan keyDays = new TimeSpan(this.FooLicenceKeyHolder.FooLicence.Licence.LicenceExpiryDate.Ticks);
        TimeSpan nowDays = new TimeSpan(System.DateTime.Now.Ticks);

        int daysLeft = keyDays.Days - nowDays.Days;

        xacc.ide
        IronScheme - 1.0 beta 4 - out now!
        ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

        K Offline
        K Offline
        Keith Barrow
        wrote on last edited by
        #18

        :wtf: :omg: :-D Yep, that takes the biscuit. What's the conversion rate of Idiotions into Imbiciles (our local dim-wit currency)?

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        • K Keith Barrow

          Actually DateTime date = DateTime.Parse(DateTime.Now.Date.ToString("dd/MM/yyyy")); can be written as DateTime date = DateTime.Now.Date; No strings involved! You'll also notice that the original coder acutally had the "DateTime.Now.Date" bit, which they then cast to a string (in UK date format) that is subsequently parsed back to a DateTime.

          B Offline
          B Offline
          Brady Kelly
          wrote on last edited by
          #19

          Well spotted. Have some brick points.

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          • K Keith Barrow

            I've inherited one of the worst code-bases I've ever seen in 9 years of .netting. I've spotted this little gem scattered like gingerbread-crumbs thoughout the code:

            DateTime date = DateTime.Parse(DateTime.Now.Date.ToString("dd/MM/yyyy"));

            To make it worse this code is repeated not just in different classes but in the same class :wtf: To add piquancy, the variable being set is just called date, not today or todaysDate or something bit more sensible, so I had to work out what it did. I still can't work out why, I only know it makes my eyes bleed....

            J Offline
            J Offline
            Joe Programm3r
            wrote on last edited by
            #20

            :omg: My jaw hurts from having it smack the desktop.

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            • K Keith Barrow

              I've inherited one of the worst code-bases I've ever seen in 9 years of .netting. I've spotted this little gem scattered like gingerbread-crumbs thoughout the code:

              DateTime date = DateTime.Parse(DateTime.Now.Date.ToString("dd/MM/yyyy"));

              To make it worse this code is repeated not just in different classes but in the same class :wtf: To add piquancy, the variable being set is just called date, not today or todaysDate or something bit more sensible, so I had to work out what it did. I still can't work out why, I only know it makes my eyes bleed....

              M Offline
              M Offline
              Marc Clifton
              wrote on last edited by
              #21

              keefb wrote:

              I still can't work out why

              As to why, he only wants the date, with the time portion set to 0. ;) Marc

              Will work for food. Interacx

              I'm not overthinking the problem, I just felt like I needed a small, unimportant, uninteresting rant! - Martin Hart Turner

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              • M Marc Clifton

                keefb wrote:

                I still can't work out why

                As to why, he only wants the date, with the time portion set to 0. ;) Marc

                Will work for food. Interacx

                I'm not overthinking the problem, I just felt like I needed a small, unimportant, uninteresting rant! - Martin Hart Turner

                M Offline
                M Offline
                Mark Hurd
                wrote on last edited by
                #22

                And I should add the simplest version is: DateTime.Today

                Regards, Mark Hurd, B.Sc.(Ma.) (Hons.)

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                • N Nelson Costa Inacio

                  Amazing bad code!!!!!!

                  M Offline
                  M Offline
                  MaksimP
                  wrote on last edited by
                  #23

                  // Try this: DateTime now   = DateTime.Now; DateTime date = new DateTime(now.Year, now.Month, now.Day);

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                  • K Keith Barrow

                    I've inherited one of the worst code-bases I've ever seen in 9 years of .netting. I've spotted this little gem scattered like gingerbread-crumbs thoughout the code:

                    DateTime date = DateTime.Parse(DateTime.Now.Date.ToString("dd/MM/yyyy"));

                    To make it worse this code is repeated not just in different classes but in the same class :wtf: To add piquancy, the variable being set is just called date, not today or todaysDate or something bit more sensible, so I had to work out what it did. I still can't work out why, I only know it makes my eyes bleed....

                    D Offline
                    D Offline
                    Dave Parker
                    wrote on last edited by
                    #24

                    Not good but I've seen worse. I'm sitting in front of code that's full of... try { // various code here } catch { } finally { } Empty catch and finally blocks everywhere. In your case though I think that will break if regional language settings define the date format as anything other than date/month/year as it'll format it with the date first and then reparse it as say mm/dd/yyyy in the US causing the date and month to be swapped.

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                    • D David Skelly

                      One thing it will do is break if you run it in America. If the date is 5th March 2009, the ToString conversion will give you 05/03/2009. But because no format is specified on the Parse method, it will assume the default date format, which in America is MM/dd/yyyy. So 05/03/2009 will get converted to 3rd May 2009. My guess would be this is someone from a Java background because java.util.Date doesn't have an equivalent to .NET's DateTime.Date property, and it's not so easy to strip off the time part. The correct way to do it in Java is with java.util.Calendar, but lots of people use this sort of clumsy format/parse approach.

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                      D Offline
                      dojohansen
                      wrote on last edited by
                      #25

                      Actually you're dead wrong in so many ways. :D 1) Since ToString() and Parse() both use the *same* culture, it doesn't matter what that culture is. 2) The culture used is not necessarily the system default. It is the current culture, which can be set programmatically to whatever we'd like it to be. 3) The default culture doesn't actually depend on where the machine is located. I once wrote a disposable class called CultureBubble in order to easily run portions of code with a specific culture, like this:

                      using (new CultureBubble("FR"))
                      {
                      foo();
                      bar();
                      }

                      This technique is quite useful, as it requires minimal coding compared to writing logic for dealing with different cultures everywhere data is parsed or presented in culture-dependent ways.

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