Using data from Papaparse callback function - callback

Question

I am probably getting it all backward, and I am afraid I haven't done much javascript for a long time and things have changed quite a bit since then. The answer may thus be very trivial, but I wasn't able to find anything useful online.
Very simply, I would like to papaparse a csv file, either locally (/log.csv) or remotely (http://mywebsite.com/log.csv), the data from which I would like to be able to use in the rest of the script. In other words, ideally something like that:
var mydata = Papa.parse("http://fetconsulting.co.uk/demo-fleetdrive/log_full.csv", {
download: true,
complete: function(results) {
console.log(results);
}
});
alert(mydata.data.length);
myfantasticplottingfunction(mydata);
Thoughts?
Thanks a ton!

Answer 1

This solved my problem:
Papa.parse("http://mywebsite.com/log.csv", {
download: true,
complete: function(results) {
(function myfantasticplottingfunction(container) {
// Do amazing things with envision.js on results
console.log(results);
alert(results.length);
return new envision.templates.TimeSeries(options);
})(document.getElementById("editor-render-0"));
}
});
Basically, I did indeed get things backward and misunderstood callback functions. The variable results was out of scope, because produced asynchronously, and therefore difficult/impossible to return "the usual way". The easy fix was to place my visualisation within the scope of the callback.
Thanks!