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Re: Handling numbers via JSON.parse Q's?

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On Thu, 10 Jan 2013 21:37:56 -0500, BobMCT wrote:

> I've recently altered some of my js functions to extract ajax data from
> eval to JSON.parse and unfortunately I've lost my numerics that come
> down.
> 
> My json string looks like this:
> 
{"_stat":null,"_desc":"Powerball","_url":"www.ctlottery.org","_mdup":"N",
"_bdup":"N","_maxe":"5","_minn":"1","_maxn":"59","_bmaxe":"1","_bminn":"1",
"_bmaxn":"35"}

How do you know this?

> and my instruction to extract the values into an associative array is:
> Ginfo = JSON.parse(xmlhttp.responseText);

Do you check what gets put into Ginfo?

See <url:http://stackoverflow.com/questions/684672/loop-through-
javascript-object> for a discussion of displaying an arbitrary javascript 
object such as Ginfo.

Or:

// wrap string s to lines of length n
function wrap( s, n ) {
s = String( s );
if ( s.length < n ) return s;
var r = "";
while ( s.length > n ) {
r = r + s.substr( 0, n ) + "\n";
s = s.substr( n );
}
r = r + s + "\n";
return r;
}

alert( wrap( "Ginfo:" + JSON.stringify( Ginfo ), 50 ) );

and check that this is the JSON string that you think Ginfo was created 
from.

> However, when I try to extract a numeric value using the following
> instruction:
> 
> _maxe = Number(Ginfo['_maxe']);
> 
> it appears that the field _maxe is NULL.  Also, when I try to show its
> value with an alert('_maxe = ' + _maxe);
> the value displayed is NaN (Not a Number.

What do you get with:

alert ( "response:" + xmlhttp.responseText );

alert ( "Ginfo['_maxe']:" + Ginfo['_maxe'] );

Note - I've been up all night, I'm tired, and I didn't check any of this 
code would actually work!

-- 
Denis McMahon, denismfmcmahon@gmail.com

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Thread

Handling numbers via JSON.parse Q's? BobMCT <r.mariotti@fdcx.net> - 2013-01-10 21:37 -0500
  Re: Handling numbers via JSON.parse Q's? Stefan Weiss <krewecherl@gmail.com> - 2013-01-11 03:45 +0100
  Re: Handling numbers via JSON.parse Q's? Denis McMahon <denismfmcmahon@gmail.com> - 2013-01-11 08:39 +0000
    Re: Handling numbers via JSON.parse Q's? Denis McMahon <denismfmcmahon@gmail.com> - 2013-01-11 09:22 +0000
      Re: Handling numbers via JSON.parse Q's? BobMCT <r.mariotti@fdcx.net> - 2013-01-11 21:02 -0500

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