multi-dem array

[Michael Hill]

If I have this array like:

var XXXX = new Array(
"('2003','45.24 ','.2',true,tru e)",
"('2004','45.75 ','.25')",
"('2005','46.01 ','.27')",
);

and have identified the array as "selectedAr ray" then this code below
iterates over the array
for ( var i=0; i < selectedArray.l ength; i++ )
{
var g = selectedArray[i];
alert(g);
}

selectedArray.l ength = 3, right?
if I look at g I get ('2006','39.45' ,'.21'), but if I want to see the
individual elements shouldn't I be able to use (which dosent work):
var h = selectedArray[i][0]; to get '2006'
var i = selectedArray[i][1]; to get '39.45'
var j = selectedArray[i][2]; to get '.21'

Mike

[Lasse Reichstein Nielsen]

Re: multi-dem array

Michael Hill <hillmw@ram.lmt as.lmco.com> writes:
[color=blue]
> If I have this array like:
>
> var XXXX = new Array(
> "('2003','45.24 ','.2',true,tru e)",
> "('2004','45.75 ','.25')",
> "('2005','46.01 ','.27')",
> );
>
> and have identified the array as "selectedAr ray" then this code below
> iterates over the array
> for ( var i=0; i < selectedArray.l ength; i++ )
> {
> var g = selectedArray[i];
> alert(g);
> }
>
> selectedArray.l ength = 3, right?[/color]

At least 3, yes. You have an extra comma after the third entry, which
could potentially make some browsers give a length of 4. The standard
isn't so fuzzy, and any length of at least 3 is legal.
[color=blue]
> if I look at g I get ('2006','39.45' ,'.21'), but if I want to see the
> individual elements shouldn't I be able to use (which dosent work):
> var h = selectedArray[i][0]; to get '2006'[/color]

No. selectedArray[i] is a string, not an array.
If you want an array of arrays, you should write

var XXXX = new Array(
new Array("2003","4 5.24",".2",true ,true),
new Array("2004","4 5.75",".25"),
new Array("2005","4 6.01",".27")
);

or the shorter form:
var XXXX = [["2003","45.24", ".2",true,t rue],
["2004","45.75", ".25"],
["2005","46.01", ".27"]];


/L
--
Lasse Reichstein Nielsen - lrn@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
'Faith without judgement merely degrades the spirit divine.'

[Lasse Reichstein Nielsen]

Re: multi-dem array

Lasse Reichstein Nielsen <lrn@hotpop.com > writes:
[color=blue]
> Michael Hill <hillmw@ram.lmt as.lmco.com> writes:
>[color=green]
> > var XXXX = new Array(
> > "('2003','45.24 ','.2',true,tru e)",
> > "('2004','45.75 ','.25')",
> > "('2005','46.01 ','.27')",
> > );[/color][/color]
[color=blue]
> You have an extra comma after the third entry, which could
> potentially make some browsers give a length of 4.[/color]

I'll take that back. It is a syntax error.
If you write arrays using array literal notation, then extra commas
are legal:
var X = [2,3,4,]; // legal
var Y = new Array(2,3,4,); // illegal syntax

/L
--
Lasse Reichstein Nielsen - lrn@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
'Faith without judgement merely degrades the spirit divine.'

[Michael Hill]

Re: multi-dem array

So
"Lasse Reichstein Nielsen" <lrn@hotpop.com > wrote in message
news:d6eo3z3i.f sf@hotpop.com.. .[color=blue]
> Michael Hill <hillmw@ram.lmt as.lmco.com> writes:
>[/color]
<snip>

I like this shorter form
[color=blue]
>
> or the shorter form:
> var XXXX = [["2003","45.24", ".2",true,t rue],
> ["2004","45.75", ".25"],
> ["2005","46.01", ".27"]];
>[/color]

So, If i had selected "XXXX" from a listbox and was going to iterate shoving
this first value into another listbox why wouldn't this work?

for ( var i=0; i < selectedArray.l ength; i++ )
{
eval( "document.form. mylistbox.optio ns[i][0]=" + "new Option" +
selectedArray[i][0] );
}

Mike[color=blue]
>
> /L
> --
> Lasse Reichstein Nielsen - lrn@hotpop.com
> Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
> 'Faith without judgement merely degrades the spirit divine.'[/color]

[Michael Hill]

Re: multi-dem array

Lasse, Sind sir Deutsch?

Still having problems. se below.

Mike

"Lasse Reichstein Nielsen" <lrn@hotpop.com > wrote in message
news:r833tnmz.f sf@hotpop.com.. .[color=blue]
> "Michael Hill" <hillmw@charter .net> writes:
>[color=green][color=darkred]
> > > var XXXX = [["2003","45.24", ".2",true,t rue],
> > > ["2004","45.75", ".25"],
> > > ["2005","46.01", ".27"]];
> > >[/color]
> >
> > So, If i had selected "XXXX" from a listbox and was going to iterate[/color][/color]
shoving[color=blue][color=green]
> > this first value into another listbox why wouldn't this work?
> >
> > for ( var i=0; i < selectedArray.l ength; i++ )
> > {
> > eval( "document.form. mylistbox.optio ns[i][0]=" + "new Option" +
> > selectedArray[i][0] );[/color]
>
> First of all, you *never* need to use eval to access an object property.
> You will probably never need eval at all. Using eval in inefficient
> and makes errors harder to find.
>
> This should do it (I always add the forms and elements collections):
>
> document.forms['form'].elements['mylistbox'].options[i] =
> new Option(selected Array[i][0]);
>[/color]

This must not be adding the "value" to the listbox.

I'm adding the array to the listbox using:

for ( var i=0; i < selectedArray.l ength; i++ )
{
document.forms['form'].elements['mylistbox'].options[i] = new
Option(selected Array[i][0]);
}

When I click on the listbox

onclick="docume nt.forms['form'].elements['mylistbox'].options[document.forms
['form'].elements['mylistbox'].selectedIndex].value;"

I'm getting ""
[color=blue]
> You just have a "[0]" too many. The options collection is only
> one-dimensional.
>
> /L
> --
> Lasse Reichstein Nielsen - lrn@hotpop.com
> Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
> 'Faith without judgement merely degrades the spirit divine.'[/color]