Hi Jago, - If you install Firebug for Firefox, you will have a console() object to which you can write debug data; BUT remember that the console object only exists as long as firebug is installed - you must ensure that you remove the references to it before the code moves to production.
- If you require interactive debugging, check out Venkman Debugger for Firefox: this approximates a full symbolic step debugger for Javascript on the client. -John jago wrote: > Sadly all examples are written in Javascript, so there is no > possibility to modify running code slowly. > > 1. Can somebody tell me how to better find out where problems in my > code is? Perhaps some debugging messages one can print out? > > 2. Can somebody check my code below and tell me what to change so it > works? Or provide me with a similar example using JSon? > > > Cheers, > jago > > <html> > <head> > <script type='text/javascript' src='http://www.google.com/jsapi'></ > script> > <script type='text/javascript'> > google.load('visualization', '1', {packages: > ['annotatedtimeline']}); > google.setOnLoadCallback(drawChart); > function drawChart() { > var chart = new google.visualization.AnnotatedTimeLine > (document.getElementById('chart_div')); > var json_data = new google.visualization.DataTable( {cols: > [{id:'point_in_time',label:'point in time',type:'date'}, > {id:'columnlabel0',label:'columnLabel0',type:'number'} ], rows: [ {c: > [{v:new Date(2008, 1, 28, 0, 31, 26)}, {v:30000}]}, {c:[{v:new Date > (2008, 1, 29, 0, 31, 26)}, {v:40000}]} ] } ); > chart.draw(json_data, {displayAnnotations: false}); > } > </script> > </head> > > <body> > <div id='chart_div'></div> </body> > </html> > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en -~----------~----~----~----~------~----~------~--~---
