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Groups > comp.lang.javascript > #34226
| Newsgroups | comp.lang.javascript |
|---|---|
| Date | 2017-10-29 03:03 -0700 |
| References | (4 earlier) <8f442f26-987b-4482-bf5f-775856a0a3b8@googlegroups.com> <5883795.4vTCxPXJkl@PointedEars.de> <7b7114cd-8e1a-49f3-b69f-9a23e95d280c@googlegroups.com> <kt73vcpiuul20rm04b0pmf7d1ontqc6q04@4ax.com> <4045820.LvFx2qVVIh@PointedEars.de> |
| Message-ID | <c2944012-e18e-41ed-be01-8eafeb76f495@googlegroups.com> (permalink) |
| Subject | Re: Measuring time (was: Random numbers) |
| From | Dr J R Stockton <J.R.Stockton@physics.org> |
On Thursday, October 26, 2017 at 6:05:06 PM UTC+1, Thomas 'PointedEars' Lahn wrote:
> > On Tue, 24 Oct 2017 13:05:49 -0700 (PDT), Dr J R Stockton wrote:
> >> IIRC, new Date(Y, 0, N) fails for years 0 to 99; and MD is wrong for most
> >> of Year 0.
> AFAICS, the result for Y === 0 is only wrong (not as specified) if N < 366
> and one expects a date that is not in 1900 CE.
There is only one such date; there was no 1900-02-29.
But the following code yields merely 59 :-
S = ""
for (N=1 ; N<400 ; N++) {
D1 = new Date(0e3, 0, N).getDate()
D2 = new Date(2e3, 0, N).getDate()
S += "+" + +(D1==D2) }
eval(S)
In a normal year, January+February is 59 days; the rest are wrong.
--
(c) John Stockton, near London, UK. Using Google, no spell-check. |
Mail: J.R.""""""""@physics.org |
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Random numbers emf <emfril@gmail.com> - 2017-10-19 07:35 -0400
Re: Random numbers Julio Di Egidio <julio@diegidio.name> - 2017-10-19 05:03 -0700
Re: Random numbers Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-10-19 21:06 +0200
Re: Random numbers "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-10-19 12:10 -0700
Re: Random numbers Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-10-19 22:04 +0200
Re: Random numbers "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-10-19 13:41 -0700
Measuring time (was: Random numbers) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-10-19 22:58 +0200
Re: Measuring time (was: Random numbers) Dr J R Stockton <J.R.Stockton@physics.org> - 2017-10-24 13:05 -0700
Re: Measuring time Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-10-25 00:59 +0200
Re: Measuring time Dr J R Stockton <J.R.Stockton@physics.org> - 2017-10-25 13:36 -0700
Re: Measuring time Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-10-26 19:21 +0200
Re: Measuring time (was: Random numbers) Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2017-10-26 10:45 +0200
Re: Measuring time (was: Random numbers) "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-10-26 12:27 +0200
Re: Measuring time (was: Random numbers) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-10-26 19:04 +0200
Re: Measuring time (was: Random numbers) Hans-Georg Michna <hans-georg@michna.com> - 2017-10-28 11:05 +0200
Re: Measuring time (was: Random numbers) Dr J R Stockton <J.R.Stockton@physics.org> - 2017-10-29 03:03 -0700
Re: Measuring time (was: Random numbers) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-10-29 17:56 +0100
Re: Measuring time (was: Random numbers) dr.j.r.stockton@gmail.com - 2017-10-29 15:12 -0700
Re: Measuring time Sam E <why.should.this@be.email.invalid> - 2017-10-29 17:35 -0500
Re: Measuring time (was: Random numbers) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-10-30 13:00 +0100
Re: Measuring time (was: Random numbers) Tim Slattery <tim@risingdove.com> - 2017-10-26 14:13 -0400
Re: Random numbers Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-10-19 22:21 +0100
Re: Random numbers Julio Di Egidio <julio@diegidio.name> - 2017-10-19 22:25 -0700
Re: Random numbers "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2017-10-20 21:52 -0700
Re: Random numbers Julio Di Egidio <julio@diegidio.name> - 2017-10-20 22:40 -0700
Re: Random numbers "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2017-10-21 12:40 -0700
Re: Random numbers Julio Di Egidio <julio@diegidio.name> - 2017-10-21 12:57 -0700
Re: Random numbers Julio Di Egidio <julio@diegidio.name> - 2017-10-21 12:59 -0700
Re: Random numbers "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2017-10-22 16:37 -0700
Re: Random numbers Julio Di Egidio <julio@diegidio.name> - 2017-10-22 17:23 -0700
Re: Random numbers emf <emfril@gmail.com> - 2017-10-20 20:32 -0400
Re: Random numbers "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-10-21 09:47 -0700
Re: Random numbers emf <emfril@gmail.com> - 2017-10-22 14:55 -0400
Re: Random numbers emf <emfril@gmail.com> - 2017-10-27 22:23 -0400
Re: Random numbers Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-10-28 18:54 +0200
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