How get all selected values (not empty) for all selects in Prototype $$()?

Question

How get all selected values (not empty) for all selects in document using Prototype dollar dollar function $$() ?

Thanks, Celso

How do you define "empty"? The option does or doesn't have a value? The option does or doesn't have text content? It would be helpful if you posted your HTML. — user113716
– user113716, Commented Jul 6, 2011 at 19:51

user113716 · Accepted Answer · 2011-07-06 19:54:23Z

4

I don't know what your definition of "empty" is.

This needs to be known because most browsers will look at the value attribute as well as the text content of the option.

Assuming that there is a value attribute that has been set to an empty string, or there's no value and no text content, then you could do this:

var result = $$('select').invoke('getValue').without('');

answered Jul 6, 2011 at 19:54

user113716

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Comments

Diodeus - James MacFarlane · Accepted Answer · 2011-07-06 19:46:41Z

-1

One reason I switched to jQuery is that it is a lot easier to handle these situations.

You may need do it the hard way in Prototype:

$$('...').each(function(element) {
    if(element.innerHTML=='') {
        // your operation
    }

})

answered Jul 6, 2011 at 19:46

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