Unspecified JavaScript error message

Online experiments
1

I keep getting an unspecified javascript error message

link: https://run.pavlovia.org/smoha005/cirso/html/

image
image1366Ɨ768 61.6 KB

First code for randomisation is:

    for (var i = start; i < end; i++) {
        foo.push(i);
    }
    return foo;
}

function shuffle(array) {
  for (let i = array.length - 1; i > 0; i--) {
    let j = Math.floor(Math.random() * (i + 1)); 
    [array[i], array[j]] = [array[j], array[i]];
  }
}

var trialListCatA = range(2,6);
var trialListCatB = range(6,8);
var trialListCatC = range(8,20);
var trialListCatD = range(20,26);
var trialListCatE = range(26,38);
var trialListCatF = range(38,42);
var trialListCatG = range(42,68);

shuffle(trialListCatA);
var catAsliceBL2 = trialListCatA.slice(0,3);
var catAsliceBL3 = trialListCatA.slice(3,4);

shuffle(trialListCatG);
var catGsliceBL2 = trialListCatG.slice(0,15);
var catGsliceBL3 = trialListCatG.slice(15,26);

trialListBlock1 = trialListCatA.concat(trialListCatB);
trialListBlock2 = trialListCatC.concat(trialListCatD, catGsliceBL2, catAsliceBL2);
trialListBlock3 = trialListCatE.concat(trialListCatD, trialListCatB, trialListCatF, catGsliceBL3, catAsliceBL3);
trialListBlock4 = trialListCatA.concat(trialListCatB);```

The other JS code is 
```// Begin Routine
function getRandomIntInclusive(min, max) {
  min = Math.ceil(min);
  max = Math.floor(max);
  return Math.floor(Math.random() * (max - min + 1)) + min; //The maximum is inclusive and the minimum is inclusive 
}

jitter = getRandomIntInclusive(100, 500)  // Gives random value between 100 and 500, inclusive
// This value can be passed to your blank component for providing
// a random gap between sound and stimulus```

Both JS codes are syntactically valid so I am not sure where the problem lies
2

@Michael I keep getting an unspecified javascript error message in the middle of some trials when completing the study (link below) I donā€™t know what the problem is. Could you please help me sort this issue out

https://run.pavlovia.org/smoha005/jenin/html

3

Sorry, but Javascript isnā€™t really my fortĆ©. Hopefully someone else can chip in here.

4

Hi @jon @dvbridges
Could you please help me figure out how to sort this issue out.

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image1366Ɨ768 104 KB

the randomisation code has been put before the loop and is suppose to randomise the stimuli within blocks however, I keep getting a ā€˜unspecified javascript errorā€™

I believe the sound is the issue here as I have uploaded the experiment without the sound trigger and works fine - no error messages. Does anyone know how to overcome this issue and why the sound is a problem here?

Link without sound:
https://run.pavlovia.org/smoha005/without_sound/html/

5

Hi @smoha005, I got the same error and I guess this is due to sound. Have you solved the problem?

6

Hi @Xiaotong, I basically had to upload my own sound as a (wav file) which worked. Using the sound A etc from the actual software does not work so I suggest uploading your own sounds as a wav or mp3 file which should work.

7

Big thanks! Problem solved!

8

Hi @smoha005, Iā€™m having a similar problem when piloting my experiment. My sound files donā€™t play and I get the same error message.
I think your solution might work for me as well, but I donā€™t understand what exactly you did? Where did you upload your wav files?
Thanks so much!

1 Like
9

Hello,
Iā€™m dealing with the same problem. Like yourself, I didnā€™t quite understand what should I do. Did you solve the problem?

Thanks!
Hadeel

10

I have a couple of suggestions in my crib sheet. Most recently I got one because of a decimal text size when using pixel units

11

I will check it Thanks!

12

Hello,
together with a colleague, I figured out that if we change the sound properties in the builder to ā€œset every repeatā€ instead of " set during: ISI", the Javascript error does not occur any more.
I donā€™t know why as I donā€™t really know Javascript and mainly used the builder for the experiment, but maybe this is helpful for you as well!

13

I do know that thereā€™s a problem with ISIs in the online experimentsā€¦as in they donā€™t seem to work. I therefore am not surprised that setting something during an ISI would cause an error.

Iā€™ve abandoned the ISI component for online use.