Re: odpowiednik

Article View: pl.comp.lang.javascript

Article #49238

Back to pl.comp.lang.javascript Previous Next

#49238

From: marcoos
Date: Wed, 19 Aug 2009 23:23

20 lines
1712 bytes

On 19 Sie, 23:25, qwe <q...@qwe.pl> wrote:
> jest tablica "a", chciałbym sprawdzić czy wartość "b" występuje jako
> któryś z kluczy w tablicy i jeżeli tak to wyświetlić jego wartość. W
> PHP wygląda to tak:

var a = { x: 5, y: 7, z: 9 };

if ('x' in a) {
  alert(a.x);
}

var b = "y";
if (b in a) {
  alert(a[b]);
}

https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Operators/Special_Operators/in_Operator

--
marcoos.com

Technical Details

Message-ID: <5245fdf1-75e8-47f7-88c7-6bd76a0b8369@j19g2000vbp.googlegroups.com>

Path:

mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!news.rmf.pl!agh.edu.pl!news.agh.edu.pl!news.onet.pl!news.nask.pl!news.nask.org.pl!newsfeed00.sul.t-online.de!t-online.de!border2.nntp.dca.giganews.com!nntp.giganews.com!postnews.google.com!j19g2000vbp.googlegroups.com!not-for-mail

References: <FF9527BB-2F64-4671-A3A9-4E05C8498DEF%qwe@qwe.pl>

Show Full Headers

Complete Article Headers

Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!news.rmf.pl!agh.edu.pl!news.agh.edu.pl!news.onet.pl!news.nask.pl!news.nask.org.pl!newsfeed00.sul.t-online.de!t-online.de!border2.nntp.dca.giganews.com!nntp.giganews.com!postnews.google.com!j19g2000vbp.googlegroups.com!not-for-mail
From: marcoos <marek.stepien@gmail.com>
Newsgroups: pl.comp.lang.javascript
Subject: Re: odpowiednik
Date: Wed, 19 Aug 2009 16:23:01 -0700 (PDT)
Organization: http://groups.google.com
Lines: 23
Message-ID: <5245fdf1-75e8-47f7-88c7-6bd76a0b8369@j19g2000vbp.googlegroups.com>
References: <FF9527BB-2F64-4671-A3A9-4E05C8498DEF%qwe@qwe.pl>
NNTP-Posting-Host: 81.186.232.30
Mime-Version: 1.0
X-Trace: posting.google.com 1250724182 30216 127.0.0.1 (19 Aug 2009 23:23:02 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Wed, 19 Aug 2009 23:23:02 +0000 (UTC)
Complaints-To: groups-abuse@google.com
Injection-Info: j19g2000vbp.googlegroups.com; posting-host=81.186.232.30;  posting-account=bLyN-QoAAABLAP6jLtaa2Uu2TLiNvCY8
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; pl;  rv:1.9.2a2pre) Gecko/20090816 Namoroka/3.6a2pre,gzip(gfe),gzip(gfe)
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Reply to Parent Message