A lot of sites use javascript to submit multiple forms
Can you site an example of a site that does this?
(I'm not denying it -- I've seen all sorts of weird
things done with scripts that ought not to be possible.
I'm just curious how it's accomplished, given that
normally the submission of a form causes the browser
to stop executing the scripts on that page as it
goes on to fetch the new form-result page.)
This allows all sorts of things, including creating hoops that make it harder to use a language like perl to spider a site.
I suspect it's possible to get around this using
WWW::Mechanize and maybe Clone::PP,
but I'd have to see the details of what the scripts
on the site are doing.
$;=sub{$/};@;=map{my($a,$b)=($_,$;);$;=sub{$a.$b->()}}
split//,".rekcah lreP rehtona tsuJ";$\=$ ;->();print$/
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document.foo.submit();
To submit a form. Most of the time this is used to create hyperlinks which submit a form, or forms that submit themselves if you click on a select box, for instance. However, it can be extended by creating a class of functions to submit multiple forms at the same time. I don't have any examples off the top of my head, but if I come across one I will be sure to post it.
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[d/l]
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document.foo.submit();
Yeah, that much I'm familiar with; I've personally
seen examples of sites that use scripts to submit
forms. This is no problem for scripting, because
instead of executing the script you just submit the
form. Sometimes the script does some other things
before it submits the form, such as changes some
field values. In that case, you just do that first,
then submit the form.
However, it can be extended by creating a class of functions to submit multiple forms at the same time.
That's what I haven't seen and wouldn't know how to
do. (How do you stop your script from ceasing to
execute when the first form is submitted? Or is
Javascript multithreaded these days?
Where do the extra result pages go, then? Do
they pop up in extra windows, or what?)
Anyway, that's some pretty weird stuff, submitting
multiple forms at once. Sites ought not to do such
things.
Sometimes I wish LiveScript had never been developed.
$;=sub{$/};@;=map{my($a,$b)=($_,$;);$;=sub{$a.$b->()}}
split//,".rekcah lreP rehtona tsuJ";$\=$ ;->();print$/
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[d/l]
[select] |