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Groups > comp.lang.javascript > #22424

Re: Compressing js file?

From emf <emfril@gmail.com>
Newsgroups comp.lang.javascript
Subject Re: Compressing js file?
Date 2013-12-27 08:18 -0500
Organization Aioe.org NNTP Server
Message-ID <l9jumc$rbe$1@speranza.aioe.org> (permalink)
References <l9a32q$vkf$1@speranza.aioe.org> <9b7e78ae-b456-42bb-bab4-d5ac2d10650b@googlegroups.com> <l9iq8h$hsi$1@speranza.aioe.org> <XnsA2A364854EA0Eeejj99@194.109.133.133>

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On 2013-12-27 03:52 Evertjan. wrote:
> emf <emfril@gmail.com> wrote on 27 dec 2013 in comp.lang.javascript:
>
>>       function leapDay(yyyy) {
>>           var lDay;
>>           lDay = ((yyyy % 4 === 0 && yyyy % 100 !== 0) || yyyy % 400 ===
>>             0) ? 1 : 0;
>>           return lDay;
>>         }
>
> Better call this isLeapYear(y),
> [I presume that is what you ment]
> use the Javascript Date object,
> and have it return true/false:
> [warning: Javascript Januari = month 0]
>
> function isLeapYear(y) {
>     return !(new Date(y, 1, 29).getMonth()-1);
> };
>
>
>>         function isValid(yyyy, mm, dd) {
>>           var valid;
>>           if (yyyy > 0 && mm > 0 && mm <= 12 && dd > 0 && dd <= 31
>>             && !(dd === 31 && (mm === 4 || mm === 6 || mm === 9 ||
>>             mm === 11)) && !(mm === 2 && dd > 28 + leapDay(yyyy))) {
>>             valid = true;
>>           } else {
>>             valid = false;
>>           }
>>           return valid;
>>         }
>
> same objection to dubious function naming
> and lack of possible compactness here:
>
> function isValidDate(y, m, d) {
>     var t = new Date(y, m-1, d);
>     return t.getMonth()+1 == m  &&  t.getDate() == d;
> };
>
> if you prefer,
> [and if you still need the isLeapDayYear at all?]
> you could now also do:
>
> function isLeapYear(y) {
>     return isValidDate(y, 2, 29);
> };

I first wrote my date subroutines in QBasic in the early '90s soon after 
taking a 1 credit course at a Community College. I've kept updating them 
as my understanding of programming changed over the years, as I do with 
the code of my webpages. Their latest reincarnation is in the JavaScript 
program:

https://files.nyu.edu/emf202/public/js/dateCalculator.html

which still works perfectly well and it has historical importance for 
me, besides presenting a historian's view on the issue. I haven't, 
however, updated the page for some time, and I am well aware I need to 
do it, because since I wrote it I've learned Java, which modified my 
views for variable names etc. a lot.

Every time I visit this newsgroup and the issue comes up, Dr. John 
Stockton always finds some (valid) reason to express his dissatisfaction 
with my program, and I've come to accept it as an inevitable fact of life.

I wish I would delve now on your suggestions, but it will have to wait 
until I decide to sit down and revise the whole date program.

Cheers,

Eustace

-- 
It ain't THAT, babe! - A radical reinterpretation
https://files.nyu.edu/emf202/public/bd/itaintmebabe.html

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Thread

Compressing js file? emf <emfril@gmail.com> - 2013-12-23 14:31 -0500
  Re: Compressing js file? Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2013-12-23 22:08 -0200
  Re: Compressing js file? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2013-12-23 16:40 -0800
    Re: Compressing js file? emf <emfril@gmail.com> - 2013-12-24 13:23 -0500
    Re: Compressing js file? emf <emfril@gmail.com> - 2013-12-26 21:56 -0500
      Re: Compressing js file? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-12-27 09:52 +0100
        Re: Compressing js file? emf <emfril@gmail.com> - 2013-12-27 08:18 -0500
          Re: Compressing js file? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-12-27 16:59 +0100
            Re: Compressing js file? emf <emfril@gmail.com> - 2013-12-27 15:32 -0500
              Re: Compressing js file? emf <emfril@gmail.com> - 2013-12-28 15:12 -0500
                Re: Compressing js file? emf <emfril@gmail.com> - 2014-01-01 02:17 -0500
        Re: Compressing js file? Dr J R Stockton <reply1300@merlyn.demon.co.uk.invalid> - 2013-12-28 20:20 +0000
      XHR with timing issues (was: Compressing js file?) Christoph Michael Becker <cmbecker69@arcor.de> - 2013-12-27 22:33 +0100
        Re: XHR with timing issues (was: Compressing js file?) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-12-27 23:26 +0100
          Re: XHR with timing issues Christoph Michael Becker <cmbecker69@arcor.de> - 2013-12-28 12:08 +0100
            Re: XHR with timing issues emf <emfril@gmail.com> - 2013-12-28 09:04 -0500
  Re: Compressing js file? wolfgang zeidler <invalid@invalid.invalid> - 2013-12-27 22:33 +0100
    Re: Compressing js file? emf <emfril@gmail.com> - 2013-12-28 00:16 -0500
      Re: Compressing js file? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-12-28 11:13 +0100
        Re: Compressing js file? emf <emfril@gmail.com> - 2013-12-28 11:26 -0500
          Re: Compressing js file? emf <emfril@gmail.com> - 2013-12-28 13:53 -0500
            Re: Compressing js file? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-12-28 21:00 +0100
              Re: Compressing js file? emf <emfril@gmail.com> - 2013-12-29 21:47 -0500
                Re: Compressing js file? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2013-12-31 14:05 -0800
                Re: Compressing js file? emf <emfril@gmail.com> - 2014-01-01 02:50 -0500
                Re: Compressing js file? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2014-01-01 01:16 -0800
                Re: Compressing js file? emf <emfril@gmail.com> - 2014-01-01 08:13 -0500
                Re: Compressing js file? Tim Streater <timstreater@greenbee.net> - 2014-01-01 14:17 +0000
                Re: Compressing js file? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2014-01-01 15:31 -0800
                Re: Compressing js file? emf <emfril@gmail.com> - 2014-01-01 18:38 -0500
                Re: Compressing js file? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2014-01-01 15:45 -0800
                Re: Compressing js file? emf <emfril@gmail.com> - 2014-01-02 11:43 -0500
                Re: Compressing js file? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2014-01-02 09:34 -0800
                OT: Compressing js file? Christoph Michael Becker <cmbecker69@arcor.de> - 2014-01-02 19:52 +0100
                Re: Compressing js file? emf <emfril@gmail.com> - 2014-01-03 07:19 -0500
                Re: Compressing js file? emf <emfril@gmail.com> - 2014-01-03 07:31 -0500
                Re: Compressing js file? Tim Streater <timstreater@greenbee.net> - 2014-01-02 09:14 +0000
                Re: Compressing js file? Denis McMahon <denismfmcmahon@gmail.com> - 2014-01-01 16:25 +0000
                Re: Compressing js file? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2014-01-01 21:36 +0100
          Re: Compressing js file? wolfgang zeidler <invalid@invalid.invalid> - 2013-12-29 20:06 +0100
            Re: Compressing js file? wolfgang zeidler <invalid@invalid.invalid> - 2013-12-29 20:27 +0100
        Re: Compressing js file? Dr J R Stockton <reply1300@merlyn.demon.co.uk.invalid> - 2013-12-29 18:02 +0000
          Re: Compressing js file? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-12-30 18:17 +0100
            Re: Compressing js file? John Harris <niam@jghnorth.org.uk.invalid> - 2013-12-31 10:52 +0000
            Re: Compressing js file? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-12-31 13:38 +0000
              Re: Compressing js file? John Harris <niam@jghnorth.org.uk.invalid> - 2013-12-31 15:02 +0000
                Re: Compressing js file? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-01-01 16:42 +0000
                Re: Compressing js file? Dr J R Stockton <reply1400@merlyn.demon.co.uk.invalid> - 2014-01-01 21:32 +0000
            Re: Compressing js file? Dr J R Stockton <reply1300@merlyn.demon.co.uk.invalid> - 2013-12-31 21:44 +0000

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