Saving trialsData to the console

Online experiments
1

Hello, I am trying to log the results of an experiment to the JS console using something straightforward as
let csv = psychoJS.experiment.getResultAsCsv();
console.log(‘CSV_’+csv+‘_ENDCSV’);
(I inserted this in a code element). However, it always returns an empty variable “csv”. I understand data are in the _trialsData dictionary. Is it necessary to “refresh” the psychoJS object somehow to get the _trialsData? Data are regularly downloaded at the end so I am pretty sure they are saved somewhere.
Thanks in advance for any help!
Mario

2

It looks like it is necessary to call
psychoJS.experiment.nextEntry();
before
let csv = psychoJS.experiment.getResultAsCsv();
I found this by trial and error… Can someone who is more expert tell if it is the right approach?
Thanks in advance,
Mario

3

Please could you confirm what you are trying to do and why?

I often use print statements (which auto translate to console.log) to send the values of individual variables or lists to the browser console for debugging purposes, but I can’t see why I’d want to send the entire data file.

4

My final goal is to save all the results on a local server. I am following
https://youtu.be/B4ZOX0t-kLM but in the process, for debugging purposes, I wanted to dump the csv to the console.
Could you, please, confirm that using
psychoJS.experiment.nextEntry();
is the right approach to get what is in the _currentTrialData dictionary?
Thanks!
Mario

5

I’ve just learned that thisExp.thisEntry contains a dictionary of the current row of data. I would imagine that psychoJS.experiment.thisEntry works online.

pschoJS.experiment.nextEntry() means move to the next row.

6

Yes. psychoJS.experiment.nextEntry only reports a single entry.
I tried calling
await psychoJS.experiment.save({
sync: true,
clear: false
});
but it downloads an empty csv file. It is as if another primitive should be invoked to “flush” the result but I am not able to find which primitive is
Anyone knows what is the right procedure?
Thanks again,
Mario

7

Have you tried the suggestion in my last message?

8

No, because I found, I was wrong from the very beginning for a different reason…
I put my original attempt
let csv = psychoJS.experiment.getResultAsCsv();
console.log(‘CSV_’+csv+‘_ENDCSV’);
in the wrong routine!
Now in the right place (close to the end of the experiment), it works fine.
Thanks for your support!
Mario