Path: csiph.com!aioe.org!.POSTED!not-for-mail
From: me <mu@local.local>
Newsgroups: comp.lang.javascript
Subject: Re: What is wrong with this If Else construction?
Date: Mon, 26 Dec 2016 13:34:25 +0100
Organization: Aioe.org NNTP Server
Lines: 77
Message-ID: <o3r2of$7us$2@gioia.aioe.org>
References: <47744619-426f-4af1-8376-e2935a2570db@googlegroups.com> <XnsA6EA6C0A11982eejj99@194.109.6.166> <2ee99c33-38ae-4097-b847-c3b7fc6ad63d@googlegroups.com>
NNTP-Posting-Host: jKgAZnuVEbVszNzo6UUIpA.user.gioia.aioe.org
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
X-Complaints-To: abuse@aioe.org
X-Notice: Filtered by postfilter v. 0.8.2
Xref: csiph.com comp.lang.javascript:31968

On 26-12-16 12:45, bart.smissaert@gmail.com wrote:
> Verkeerde been uit bed gestapt?
>
> I have reworked this and this is the full code:
>
> function JS_GetAge(lDOB)
>
> {
>
>     var jDOB = new Date((lDOB - (25569)) * 86400 * 1000);
>     //return jDOB;
>
>     jDOBYear = jDOB.getFullYear();
>     //return jDOBYear;
>
>     jDOBMonth = jDOB.getMonth();  //will give January as 0. Fine, as we only compare months
>     //return jDOBMonth;
>
>     var todayDate = new Date();
>
>     todayYear = todayDate.getFullYear();
>     //return todayYear;
>
>     todayMonth = todayDate.getMonth();
>     //return todayMonth;
>
>     age = todayYear - jDOBYear;
>     //return age;
>
>     //alert(age.toString(10));
>
>     if (jDOBMonth > todayMonth) {
>         age--;
>         return age;
>    }
>
>     if (jDOBMonth < todayMonth) {
>         return age;
>    }
>
>     jDOBDay = jDOB.getDate();
>     todayDay = todayDate.getDate();
>
>     if (jDOBDay < todayDay) {
>          age--;
>     }
>
>     return age;
>
> }
>
> This runs but sometimes gives the wrong age where the age is 1 less than what it should be.
> I have checked all the values (as you can see from the commented out early returns) and all
> the values are fine. I thought maybe the problem is with non integer year values so I did
> Math.round(todayYear) etc. but that made no difference. I also checked if return age;
> indeed did a function exit and it did. So not sure what the problem is.

>
> RBS
>


Een simpele test levert in ieder geval op dat de volgende data fout gaan:
01-01-1970
19-12-1970
06-12-1971
07-01-1972
24-12-1972
11-12-1973
17-12-1975
03-12-1976
04-01-1977
22-12-1977
09-12-1978
14-12-1980
01-12-1981