TypeError: cannot read property of 'ps1_cond' of undefined (Note: ps1_cond is a column header)

Online experiments
1

URL of experiment: https://run.pavlovia.org/VeraLudwig/purm-workplace-experiment-v8/html/?__pilotToken=c81e728d9d4c2f636f067f89cc14862c&__oauthToken=cd3a13639593c1d2f7e7bf0660002490e511525153df09ba063ca079074078d6

Gitlab: https://gitlab.pavlovia.org/VeraLudwig/purm-workplace-experiment-v8

Description of the problem: I originally had a working experiment from Psychopy, but it did not upload to pavlovia. I’ve looked at countless threads and learned that none of the libraries worked so I used a shuffle function and an excel reading function that was shared by dvbridges, which finally got my experiment to run. Now I wanted to put each of the elements in a column to separate lists and my code looks as follows:

ps1_cond = [];
gender_cond = [];
connective_cond = [];
ps2_cond = [];
gender_cond2 = [];
descriptive_cond = [];

for (var rowx = 1, _pj_a = (num_items + 1); (rowx < _pj_a); rowx += 1) {

ps1_cond.push(trialList[rowx]['ps1_cond']);
gender_cond.push(trialList[rowx]['gender_cond']);
ps2_cond.push(trialList[rowx]['ps2_cond']);
gender_cond2.push(trialList[rowx]['gender_cond2']);
if ((valueX >= 6)) {
    connective_cond.push(trialList[rowx]['connective_cond']);
    descriptive_cond.push(trialList[rowx]['descriptive_cond']);
} else {
    connective_cond.push(trialList[rowx]['descriptive_cond']);
    descriptive_cond.push(trialList[rowx]['connective_cond']);
}

}

And the error I got is TypeError: cannot read property of ‘ps1_cond’ of undefined. When I changed the ‘ps1_cond’ from the line ps1_cond.push(trialList[rowx][‘ps1_cond’]); to any other word, it will show up with the same error but with the different word. I saw from dvbridges’ code that he put the column headers in that same spot and it worked, so I’m wondering what is wrong on my part.

2

I’ve also looked at the example experiment wakecarter provided in his google doc, but I am not very confident with python and JS so I didn’t completely understand how to implement that into what I have.

3

Try undefined in the JS code instead of None.

4

Sorry, which part of the code are you referring to? The only time I recall using None was in initialize for tempPic and tempSentence (in python) but I don’t think that was what was causing the ps1_cond issue.

5

Just changed the two variables tempPic and tempSentence to undefined in the JS code, but I’m still getting the same error.

6

What is trialList ? Where does that come from?

You could try printing it (console log) to get it’s defined when used.