http://jsfiddle.net/hybrid13i/JXrwM/

30 lines in 6 lines
//////////////////////////////////////////
if (ShowLabel) CSV += Object.keys(arrData[0])+'\r\n'
arrData.forEach(function(data) {
var row = []
for(var i in data) row.push(data[i])
CSV += '"'+row.join('","')+'"\r\n';
})
//////////////////////////////////////////