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Javascript enhancement

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May 02.2003

Could javascript be changed so that single occurances of a form element be refrenced as element[0] rather than forcing us to test for multiple occurances? I don’t think this would break legacy code and only cost a little bit of client side memory.
Here is an example of the kind of code that results from the lack of this feature:
if ( document.act_form.chg.length == null ) {
document.act_form.chg.value = ‘*’
} else {
document.act_form.chg[0].value = ’27’
}

On the otherhand perhaps there is a simple solution that i’m missing. This is particularly useful to those of use who generate input elements as a function of db queries in tools like coldfusion and php.

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JavaScript

2 Comments(s) ↴

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@NedalsMay 02.2003 — I'm not sure what you are asking...

but form elements can be referenced using:

document.formname.elementname

or

document.formname.elements[n] // note the 's'

or

document.forms[n].elements[n]

A single form with one element would be referenced with..

document.forms[0].elements[0]


Any help??
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@rchoppinauthorMay 02.2003 — That would work with a) a single form having b) a single 1-or-more repeating element, but I have very few of those to deal with. Most of my documents have multiple forms and multiple elements repeating 1 or more times.


You can use the form and element arrays but you have to compare names in order to figure out which element is which.
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