[Javascript] Dollar function for name=

[Terry Riegel]

On Jun 2, 2010, at 9:58 AM, Rees, Mark wrote:

> 
>> On Jun 1, 2010, at 3:07 PM, Terry Riegel wrote:
>> 
>>> I want to be able to do something like...
>>> 
>>> $name(n).value="sausage";
>>> 
>>> In the case of a radio button it would be to set the radio whose name is pizza and whose value is sausage to selected
>>> 
>>> I will have to think through how this may/may not work. It is really something specific to my thinking and for me to be able to create a convenience function to let me address elements by their name instead of having to create an ID for all of them.
>>> 
>>> So in the case of an input I am thinking in terms of an "pseudo" object/elment that will let me deal with all the radio buttons as a single object/element.
>> 
>> 
>> I'm not generally one to point to frameworks when the question is about JavaScript, but your phrasing just screams framework.  Pseudo-elements to refer to multiple elements is exactly what JavaScript frameworks provide.  Here's how you'd do this in jQuery, for example:
>> 
>> $('[name=n]').val('sausage');
>> 
>> Peace,
>> Scott
> 
>> Exactly, the frame work I use is prototype, but I have not been able to find this kind of functionality. So I thought I would try to >>>>develop it. :)
> 
>> Terry
> 
> -----------------------------------------------------
> 
> 
> What was so wrong with the double dollar selector? Did you want a code example?
> 
> Untested so may have a syntax error, but you will get the idea
> 
> $$('input[name="sausage"]').each(function(el){
> 	//do what you want with the element(s) here
> 	//obviously there can be more than one element with the requested name as many other posters have noted
> 	alert(el.id);
> });
> 
> And once again, the references. They are really very useful for using double dollar
> 
> http://api.prototypejs.org/language/dollardollar/
> 
> http://www.css3.info/preview/attribute-selectors/

The double dollar selector would be fine, but I can also get to it with document.getElementsByName("sausage")

I am more interested in the generalized way of dealing with input elements like text, textarea, radio, checkbox, select etc. To be able to set and get their values in a consistent way.

Thanks,

Terry