document.formna me wildcard?

[JV]

I thought I once saw somewhere that a global variable, "xyz" for
example, could be declared and used so that instead of using
"document.formn ame.elementname .value" one could use
"xyz.elementnam e.value" or use "xyz" in place of "document.formn ame"
anytime a reference to a form element was made.

Is this actually true or not? I'm going crazy trying to recall
something that might not even exist!

Thanks.

JV

[ASM]

JV a écrit :

I thought I once saw somewhere that a global variable, "xyz" for
example, could be declared and used so that instead of using
"document.formn ame.elementname .value" one could use
"xyz.elementnam e.value" or use "xyz" in place of "document.formn ame"
anytime a reference to a form element was made.

Is this actually true or not? I'm going crazy trying to recall
something that might not even exist!

function verif() {
var f = document.forms['myForm']; // shortcut for form named 'myForm'
for(var i=0; i<f.length; i++)
if(f[i].type == 'text' && f[i].value=='') {
alert('field "'+f[i].name+'" not filled');
f[i].focus();
f[i].select();
return false;
}
return true;
}
--
Stephane Moriaux et son (moins) vieux Mac déjà dépassé
Stephane Moriaux and his (less) old Mac already out of date

[Evertjan.]

ASM wrote on 09 dec 2006 in comp.lang.javas cript:

JV a écrit :

>I thought I once saw somewhere that a global variable, "xyz" for
example, could be declared and used so that instead of using
"document.form name.elementnam e.value" one could use
"xyz.elementna me.value" or use "xyz" in place of "document.formn ame"
anytime a reference to a form element was made.

that shortcut is browser specific, I heard.

>Is this actually true or not? I'm going crazy trying to recall
something that might not even exist!

function verif() {
var f = document.forms['myForm']; // shortcut for form named 'myForm'

shouldn't that be for completeness:

var f = document.forms['myForm'].elements

[..]

=============== ==========

Stipulating that you use the return false/true from an onsubmit='..',
"this" is a good alternative, making the function universal:

<form onsubmit='verif (this)' ...
....
function verif(fm) {
var f = fm.elements
for(var i=0; i<f.length; i++)
if(f[i].type == 'text' && f[i].value=='') {
alert('field "'+f[i].name+'" not filled');
f[i].focus();
f[i].select();
return false;
}
return true;
}

=============== ==========

What about this:

function verif(fm) {
var f = fm.elements;
i=0;
while (i<f.length && (f[i].type!='text' || f[i].value!=''))
i++;
if (i==f.length) return true;
alert('field "'+f[i].name+'" not filled');
f[i].focus();
f[i].select();
return false;
}


--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[ASM]

Evertjan. a écrit :

ASM wrote on 09 dec 2006 in comp.lang.javas cript:

>var f = document.forms['myForm']; // shortcut for form named 'myForm'

shouldn't that be for completeness:

var f = document.forms['myForm'].elements

yeap, probably, but ...

>[..]

Stipulating that you use the return false/true from an onsubmit='..',

clever you are that finding :-)

"this" is a good alternative, making the function universal:

each thing at its time

--
Stephane Moriaux et son (moins) vieux Mac déjà dépassé
Stephane Moriaux and his (less) old Mac already out of date

[Evertjan.]

ASM wrote on 09 dec 2006 in comp.lang.javas cript:

>Stipulating that you use the return false/true from an onsubmit='..',

clever you are that finding :-)

me try harder! [avis]

>"this" is a good alternative, making the function universal:

each thing at its time

I liked the triviality of the sentence at the time. ;-}

--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)