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javascript associative array

P: n/a
is there a way to get the index of an array aside from the values that
you passed from a form?

<form name="details">
<label for="fname">
first name:
<input type="text" name="name['firstname']" id="fname" />
<label for="mname">
middle name:
<input type="text" name="name['middlename']" id="mname" />
<label for="lname">
last name:
<input type="text" name="name['lastname']" id="lname" />
<label for="hnum">
home number:
<input type="text" name="num['homenumber']" id="hnum" />
<label for="mnum">
mobile number:
<input type="text" name="num['mobilenunber']" id="mnum" />
<label for="fnum">
fax number:
<input type="text" name="num['faxnumber']" id="fnum" />
<input type="button" name="showName"
onclick="display('details','name[]')" />
<input type="button" name="showNum" onclick="display('details',
'num[]')" />

so here is my script.(which doesnt really work right)

function display(the_form,the_element){

var elts = document.forms[the_form].elements[the_element];
var elts_cnt = (typeof(elts.length) != 'undefined')? elts.length : 0;
var param = '';

if (elts_cnt)

for (var i in elts)
param = param + i + "=" + elst[i] + "&";
} // end for

param = param.substring(0,(param.length-1));

} // end if


i need to make the param like this

firstname=joe&middlename=smith&lastname=wilson&... ...

Sep 26 '05 #1
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1 Reply

P: n/a
ma****** said the following on 9/26/2005 1:29 AM:
is there a way to get the index of an array aside from the values that
you passed from a form?

What array? There are no JS Arrays defined in the code you posted. Are
you using PHP server-side by chance? PHP likes those arrayName[] constructs.

And, it would be better suited as an object instead of an array.

If the page is generated, have it generate objects for each section you
want to keep up with. Then its a matter of going through the object's
properties and getting what you want. But, there is a simpler way if you
simply redefine your name/IDs/Labels so that it becomes easier.

The whole thing begs the question "What are you trying to accomplish

comp.lang.javascript FAQ - & newsgroup weekly
Sep 26 '05 #2

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