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Groups > comp.lang.javascript > #16160
| From | Christoph Becker <cmbecker69@gmx.de> |
|---|---|
| Newsgroups | comp.lang.javascript |
| Subject | Re: Who's eaten my apple and why? |
| Date | 2012-09-27 01:35 +0200 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <k403fb$o5g$1@speranza.aioe.org> (permalink) |
| References | <37c94a7b-70f8-47f5-b5b8-2a1b3350de43@u19g2000yqo.googlegroups.com> |
justaguy wrote:
> function dSelect() {
> var sel = document.getElementById('mySel');
> var o = document.createElement('option');
>
> o.value="a";
> o.text="apple";
> sel.options.add(o);
> alert(sel.length);
>
> o.value="ora";
> o.text="orange";
> sel.options.add(o);
> alert(sel.length);
> }
Your're adding the *same* object to the HTMLSelectElement twice. What's
happening is explained in the specs
(<http://www.w3.org/TR/DOM-Level-2-HTML/html.html#ID-94282980>). If you
want to add two "options", you have to create two distinct
HTMLOptionElement objects:
function dSelect() {
var sel = document.getElementById('mySel');
var o = document.createElement('option');
o.value="a";
o.text="apple";
sel.options.add(o);
alert(sel.length);
o = document.createElement('option');
o.value="ora";
o.text="orange";
sel.options.add(o);
alert(sel.length);
}
--
Christoph M. Becker
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Who's eaten my apple and why? justaguy <lichunshen84@gmail.com> - 2012-09-26 14:43 -0700
Re: Who's eaten my apple and why? Christoph Becker <cmbecker69@gmx.de> - 2012-09-27 01:35 +0200
Re: Who's eaten my apple and why? justaguy <lichunshen84@gmail.com> - 2012-09-26 17:46 -0700
Re: Who's eaten my apple and why? Stefan Weiss <krewecherl@gmail.com> - 2012-09-27 03:51 +0200
Re: Who's eaten my apple and why? justaguy <lichunshen84@gmail.com> - 2012-09-26 19:44 -0700
Re: Who's eaten my apple and why? Stefan Weiss <krewecherl@gmail.com> - 2012-09-27 22:06 +0200
Re: Who's eaten my apple and why? Gene Wirchenko <genew@ocis.net> - 2012-09-26 17:59 -0700
Re: Who's eaten my apple and why? Stefan Weiss <krewecherl@gmail.com> - 2012-09-27 04:16 +0200
Re: Who's eaten my apple and why? Gene Wirchenko <genew@ocis.net> - 2012-09-26 19:38 -0700
Re: Who's eaten my apple and why? Stefan Weiss <krewecherl@gmail.com> - 2012-09-27 05:44 +0200
Re: Who's eaten my apple and why? Gene Wirchenko <genew@ocis.net> - 2012-09-27 09:28 -0700
Re: Who's eaten my apple and why? Tim Streater <timstreater@greenbee.net> - 2012-09-27 17:40 +0100
Re: Who's eaten my apple and why? Gene Wirchenko <genew@ocis.net> - 2012-09-27 16:24 -0700
Re: Who's eaten my apple and why? Dr J R Stockton <reply1239@merlyn.demon.co.uk.invalid> - 2012-09-29 20:47 +0100
Re: Who's eaten my apple and why? Christoph Becker <cmbecker69@gmx.de> - 2012-09-27 13:00 +0200
Re: Who's eaten my apple and why? Gene Wirchenko <genew@ocis.net> - 2012-09-27 09:34 -0700
Re: Who's eaten my apple and why? Christoph Becker <cmbecker69@gmx.de> - 2012-09-27 19:14 +0200
Re: Who's eaten my apple and why? Stefan Weiss <krewecherl@gmail.com> - 2012-09-27 21:40 +0200
Re: Who's eaten my apple and why? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-09-28 15:39 +0200
Re: Who's eaten my apple and why? Gene Wirchenko <genew@ocis.net> - 2012-09-27 16:25 -0700
Re: Who's eaten my apple and why? Tim Streater <timstreater@greenbee.net> - 2012-09-27 08:52 +0100
Re: Who's eaten my apple and why? Gene Wirchenko <genew@ocis.net> - 2012-09-26 17:50 -0700
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