merging arrays

[Bush will disarm all workers next]

I'm new to JavaScript. So please excuse my mistakes.
I need help on merging two arrays into a third one.
There is an array a = {188, 180, 159, 67 }
There is another array b={'Rio de Janeiro', 'Sao Paulo', 'Brasilia',
'Belo Horizonte'}
How can I merge them to produce an array that is equivalent to this:
bg.xValues[0] = [188,'Rio de Janeiro'];
bg.xValues[1] = [180,'Sao Paulo'];
bg.xValues[2] = [159,'Brasilia'];
bg.xValues[3] = [67 ,'Belo Horizonte'];



Thanks
Dakshin

[Michael Winter]

Re: merging arrays

On 17 Apr 2004 05:49:56 -0700, Bush will disarm all workers next
<dakshing64@yah oo.com> wrote:
[color=blue]
> I'm new to JavaScript. So please excuse my mistakes.
> I need help on merging two arrays into a third one.
> There is an array a = {188, 180, 159, 67 }
> There is another array b={'Rio de Janeiro', 'Sao Paulo', 'Brasilia',
> 'Belo Horizonte'}[/color]

I assume you meant

a = [ 188, 180, 159, 67 ];
b = [ 'Rio de Janeiro', 'Sao Paulo', 'Brasilia', 'Belo Horizonte' ];

Braces ({}) denote object literals, brackets ([]) denote array literals.
[color=blue]
> How can I merge them to produce an array that is equivalent to this:
> bg.xValues[0] = [188,'Rio de Janeiro'];
> bg.xValues[1] = [180,'Sao Paulo'];
> bg.xValues[2] = [159,'Brasilia'];
> bg.xValues[3] = [67 ,'Belo Horizonte'];[/color]

function mergeArrays( x, y ) {
var t = [], n = Math.min( x.length, y.length );

for( var i = 0; i < n; ++i ) {
t[ i ] = [ x[ i ], y[ i ]];
}
return t;
}

bg.xValues = mergeArrays( a, b );

If you can guarantee that "a" and "b" will always have the same length,
you can reduce the assignment to "n" to

n = x.length; // or y.length

Hope that helps,
Mike

--
Michael Winter
M.Winter@blueyo nder.co.invalid (replace ".invalid" with ".uk" to reply)

[Bush will disarm all workers next]

Re: merging arrays

Michael Winter <M.Winter@bluey onder.co.invali d> wrote in message news:<opr6lqubv z5vklcq@news-text.blueyonder .co.uk>...[color=blue]
> On 17 Apr 2004 05:49:56 -0700, Bush will disarm all workers next
> <dakshing64@yah oo.com> wrote:
>[color=green]
> > I'm new to JavaScript. So please excuse my mistakes.
> > I need help on merging two arrays into a third one.
> > There is an array a = {188, 180, 159, 67 }
> > There is another array b={'Rio de Janeiro', 'Sao Paulo', 'Brasilia',
> > 'Belo Horizonte'}[/color]
>
> I assume you meant
>
> a = [ 188, 180, 159, 67 ];
> b = [ 'Rio de Janeiro', 'Sao Paulo', 'Brasilia', 'Belo Horizonte' ];
>
> Braces ({}) denote object literals, brackets ([]) denote array literals.
>[color=green]
> > How can I merge them to produce an array that is equivalent to this:
> > bg.xValues[0] = [188,'Rio de Janeiro'];
> > bg.xValues[1] = [180,'Sao Paulo'];
> > bg.xValues[2] = [159,'Brasilia'];
> > bg.xValues[3] = [67 ,'Belo Horizonte'];[/color]
>
> function mergeArrays( x, y ) {
> var t = [], n = Math.min( x.length, y.length );
>
> for( var i = 0; i < n; ++i ) {
> t[ i ] = [ x[ i ], y[ i ]];
> }
> return t;
> }
>
> bg.xValues = mergeArrays( a, b );
>
> If you can guarantee that "a" and "b" will always have the same length,
> you can reduce the assignment to "n" to
>
> n = x.length; // or y.length
>
> Hope that helps,
> Mike[/color]


Thanks for the reply. I tried the code you've posted without success I used
for(i=0; i < a.length; i++)
bg.xValues[i]=[a[i], b[i]];

and also
for(i=0; i < a.length; i++)
bg.xValues[i]=[eval(a[i]), eval(b[i])];

The bg object is a strange beast that expects atomic values like 145 or 'test'.
Any thoughts?

Dakshin

[Michael Winter]

Re: merging arrays

On 17 Apr 2004 13:58:30 -0700, Bush will disarm all workers next
<dakshing64@yah oo.com> wrote:

[snip]
[color=blue]
> Thanks for the reply. I tried the code you've posted without success I
> used
> for(i=0; i < a.length; i++)
> bg.xValues[i]=[a[i], b[i]];
>
> and also
> for(i=0; i < a.length; i++)
> bg.xValues[i]=[eval(a[i]), eval(b[i])];[/color]

Using eval() certainly won't do any good (there are very few reasons to
*ever* use eval()).
[color=blue]
> The bg object is a strange beast that expects atomic values like 145 or
> 'test'.
> Any thoughts?[/color]

Unless you can point to some documentation that explains what the bg
object is, I haven't got a clue.

Sorry,
Mike

--
Michael Winter
M.Winter@blueyo nder.co.invalid (replace ".invalid" with ".uk" to reply)

[Bush will disarm all workers next]

Re: merging arrays

Michael Winter <M.Winter@bluey onder.co.invali d> wrote in message news:<opr6mdurs x5vklcq@news-text.blueyonder .co.uk>...[color=blue]
> On 17 Apr 2004 13:58:30 -0700, Bush will disarm all workers next
> <dakshing64@yah oo.com> wrote:
>
> [snip]
>[color=green]
> > Thanks for the reply. I tried the code you've posted without success I
> > used
> > for(i=0; i < a.length; i++)
> > bg.xValues[i]=[a[i], b[i]];
> >
> > and also
> > for(i=0; i < a.length; i++)
> > bg.xValues[i]=[eval(a[i]), eval(b[i])];[/color]
>
> Using eval() certainly won't do any good (there are very few reasons to
> *ever* use eval()).
>[color=green]
> > The bg object is a strange beast that expects atomic values like 145 or
> > 'test'.
> > Any thoughts?[/color]
>
> Unless you can point to some documentation that explains what the bg
> object is, I haven't got a clue.
>
> Sorry,
> Mike[/color]

Here is the link that has Javascript that uses bg at the bottom of the
page. I've the Graph.js downloaded on another machine. I'll post the
details soon.

http://www.codeproject.com/jscript/dhtml_graph.asp