javascript and []

[Guest]

<form name=f>
<input type=text name="apple[]" value=1>
</form>

<script>
document.f.appl e[].value=2
</script>

///////////////////////////
this generates an script error in IE
because of apple[]
so how do I get around the error?
(must use "apple[]" for server cgi)

thanks in advance :)

[CryingClinton]

Re: javascript and []

document.getEle mentsByName("ap ple[]") //returns an object array

--

https://www.vicdir.com

<apple@apple.co m> дÈëÓʼþ news:ccpv0f$440 $3@news.seed.ne t.tw...[color=blue]
> <form name=f>
> <input type=text name="apple[]" value=1>
> </form>
>
> <script>
> document.f.appl e[].value=2
> </script>
>
> ///////////////////////////
> this generates an script error in IE
> because of apple[]
> so how do I get around the error?
> (must use "apple[]" for server cgi)
>
> thanks in advance :)
>
>
>
>[/color]

[Evertjan.]

Re: javascript and []

wrote on 11 jul 2004 in comp.lang.javas cript:[color=blue]
> <form name=f>
> <input type=text name="apple[]" value=1>
> </form>
>
> <script>
> document.f.appl e[].value=2
> </script>
>[/color]

<form name=f>
<input type=text name="apple[]" value=1>
</form>

<script type="text/javascript">
document.f[0].value=2 // the first child of f
</script>

========= or ==========

<form name=f>
<input type=text name="apple[]" id=appl value=1>
</form>

<script type="text/javascript">
document.getEle mentById('appl' ).value=2
</script>


--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[Janwillem Borleffs]

Re: javascript and []

apple@apple.com wrote:[color=blue]
> so how do I get around the error?[/color]

document.forms['f'].elements['apple[]'].value = 2;
[color=blue]
> (must use "apple[]" for server cgi)
>[/color]

Not really. I assume that you are using php, which also supports an
always_populate _raw_post_data directive.

With this directive enbled, you can simply use normal names and still use
arrays:

<form method="post" action="...">
<input type="checkbox" name="fruit" value="apple" /> Apple<br />
<input type="checkbox" name="fruit" value="banana" /> Banana<br />
<input type="checkbox" name="fruit" value="pear" /> Pear<br />
<input type="submit" />
</form>
.....
<?
if (!isset($HTTP_R AW_POST_DATA) ||
!strstr($HTTP_R AW_POST_DATA, 'fruit=')) {
print "Please select some fruits";
} else {
parse_str(
str_replace(
"fruit=",
"fruit[]=",
$HTTP_RAW_POST_ DATA
),
$fruits
);
print "Selected fruits:<br />";
foreach ($fruits['fruit'] as $fruit) {
print "$fruit<br />";
}
}
?>


JW

[Grant Wagner]

Re: javascript and []

"Evertjan." wrote:
[color=blue]
> wrote on 11 jul 2004 in comp.lang.javas cript:[color=green]
> > <form name=f>
> > <input type=text name="apple[]" value=1>
> > </form>
> >
> > <script>
> > document.f.appl e[].value=2
> > </script>
> >[/color]
>
> <form name=f>
> <input type=text name="apple[]" value=1>
> </form>
>
> <script type="text/javascript">
> document.f[0].value=2 // the first child of f
> </script>
>
> ========= or ==========
>
> <form name=f>
> <input type=text name="apple[]" id=appl value=1>
> </form>
>
> <script type="text/javascript">
> document.getEle mentById('appl' ).value=2
> </script>[/color]

document.forms['yourForm'].elements['apple[]'].value = 2;

Now you don't need to remember form input indices or use a
browser that is completely W3C compliant.

This is covered at <url: http://jibbering.com/faq/#FAQ4_25 />.

--
Grant Wagner <gwagner@agrico reunited.com>
comp.lang.javas cript FAQ - http://jibbering.com/faq

[Phil Powell]

Re: javascript and []

"Janwillem Borleffs" <jw@jwscripts.c om> wrote in message news:<40f11f24$ 0$1746$abc4f4c3 @news.wanadoo.n l>...[color=blue]
> apple@apple.com wrote:[color=green]
> > so how do I get around the error?[/color]
>
> document.forms['f'].elements['apple[]'].value = 2;
>[color=green]
> > (must use "apple[]" for server cgi)
> >[/color]
>
> Not really. I assume that you are using php, which also supports an
> always_populate _raw_post_data directive.
>
> With this directive enbled, you can simply use normal names and still use
> arrays:[/color]

[snip]
That would depend on if the compilation of your version of PHP
supports ALWAYS_POPULATE _RAW_POST_DATA. . you're safer using an array
construct, sorry.

<input type="checkbox" name="fruit[]" value="apple">A pple

in Javascript you would call this element cross-browser:
document.forms['myForm'].elements['fruit[]']

Phil
[color=blue]
>
> <form method="post" action="...">
> <input type="checkbox" name="fruit" value="apple" /> Apple<br />
> <input type="checkbox" name="fruit" value="banana" /> Banana<br />
> <input type="checkbox" name="fruit" value="pear" /> Pear<br />
> <input type="submit" />
> </form>
> ....
> <?
> if (!isset($HTTP_R AW_POST_DATA) ||
> !strstr($HTTP_R AW_POST_DATA, 'fruit=')) {
> print "Please select some fruits";
> } else {
> parse_str(
> str_replace(
> "fruit=",
> "fruit[]=",
> $HTTP_RAW_POST_ DATA
> ),
> $fruits
> );
> print "Selected fruits:<br />";
> foreach ($fruits['fruit'] as $fruit) {
> print "$fruit<br />";
> }
> }
> ?>
>
>
> JW[/color]