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Selecting questions based on a custom set of rules

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4 years 6 months ago #225983 by Moathh
Selecting questions based on a custom set of rules was created by Moathh
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==================I want to create a survey of 192 questions, where each question falls under 3 different categories (i.e. has 3 different attributes). There are 2 classes under the first category, 8 classes in the second category and 20 classes under the third category.I created a js code that draws 20 questions from the 192 according to the following rules:1-Split the questions into two groups based on the first category, Group A and Group B (note: each question in Group A is paired with a question in group B). Now, steps 2-6 applies to questions that belong to Group A2-Randomly select 1 question from each of the 8 classes of the second category (8 questions drawn)3-Determine the third category class for the 8 selected questions in step 2 and exclude all the questions that belong to these 8 classes (out of the 20) from the next draw4-Draw 1 question randomly from the updated set of questions 5-Determine the second category class of the question drawn in 4 and exclude all the questions that belong to this class from the next draw6-Draw 1 question randomly from the updated set of questions. Now we will have a total of 10 questions from Group A7-For each of the 10 questions drawn from Group A, find its matched pair from group B. Now we have a final total of 20 questions8-Schuffle the list of 20 questions and display them
 The code I created does work as intended, however, I am not able to make it work in LimeSurvey so I am not sure what I did wrong and I will appreciate your help. I created a question of type "short text" ("Q0") with the javascript snippet in the question text (source code mode) under Group 0, I put the 192 questions in another group (Group 1) and gave every question of the 192 questions a unique code in the relevance equation (Q1: strpos(Q0,"001")>0, Q2: strpos(Q0,"002")>0, etc.) and gave all questions the same randomization group name.
I attached the test file with the code for your reference.
 Thanks,
MoathP.S. this is related to a previous post ( Selecting pairs of questions from two pools of question groups in a random order - LimeSurvey forums )

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4 years 6 months ago #225987 by Joffm
Replied by Joffm on topic Selecting questions based on a custom set of rules
Bitte strukturiere den Text ein bisschen besser.
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Not because they are worthless, but because they are priceless

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4 years 6 months ago #225989 by Moathh
Replied by Moathh on topic Selecting questions based on a custom set of rules
My apologies, the text did not look like this when I posted it. Trying again (hope it works):

I want to create a survey of 192 questions, where each question falls under 3 different categories (i.e. has 3 different attributes). There are 2 classes under the first category, 8 classes in the second category and 20 classes under the third category.I created a js code that draws 20 questions from the 192 according to the following rules:

1-Split the questions into two groups based on the first category, Group A and Group B (note: each question in Group A is paired with a question in group B). Now, steps 2-6 applies to questions that belong to Group A

2-Randomly select 1 question from each of the 8 classes of the second category (8 questions drawn)

3-Determine the third category class for the 8 selected questions in step 2 and exclude all the questions that belong to these 8 classes (out of the 20) from the next draw

4-Draw 1 question randomly from the updated set of questions

5-Determine the second category class of the question drawn in 4 and exclude all the questions that belong to this class from the next draw

6-Draw 1 question randomly from the updated set of questions. Now we will have a total of 10 questions from Group A

7-For each of the 10 questions drawn from Group A, find its matched pair from group B. Now we have a final total of 20 questions

8-Schuffle the list of 20 questions and display them


The code I created does work as intended, however, I am not able to make it work in LimeSurvey so I am not sure what I did wrong and I will appreciate your help.

I created a question of type "short text" ("Q0") with the javascript snippet in the question text (source code mode) under Group 0, I put the 192 questions in another group (Group 1) and gave every question of the 192 questions a unique code in the relevance equation (Q1: strpos(Q0,"001")>0, Q2: strpos(Q0,"002")>0, etc.) and gave all questions the same randomization group name.


I attached the test file with the code for your reference.

Thanks,
Moath

P.S. this is related to a previous post ( Selecting pairs of questions from two pools of question groups in a random order - LimeSurvey forums )

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4 years 6 months ago #225992 by Joffm
Replied by Joffm on topic Selecting questions based on a custom set of rules
As far as I understand, you only want to:
Select 8 questions (1  of each of the 8 classes "ttt")
Select 1 question (the 9.) out of all classes "xn" that does not exist already 
Select 1 question (the 10.) with a "ttt" value different from the 9. question.

Or did I misunderstand completely?

Joffm
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4 years 6 months ago #225994 by Moathh
Replied by Moathh on topic Selecting questions based on a custom set of rules
That is exactly what I want to do! In addition, the 192 belong to two different groups, A (96 questions) and B (96 questions). And at the same time, the questions in these two groups are paired (each question in A has a pair in B as indicated by "relID" where a pair have the same "relID").

So, I want to select 10 questions from one of the groups (say Group A) as well as its pair in the other group (Group B), which results in 20 questions.

Finally, I want this set of 20 questions to be displayed randomly, such that the pairs are not displayed in sequence.

Many thanks!!
Moath

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4 years 6 months ago #225997 by tpartner
Replied by tpartner on topic Selecting questions based on a custom set of rules
The question is not being loaded by the JavaScript.

Always check the console.

To start with, you have JavaScript errors because LimeSurvey requires a space after all opening curly braces and before all closing curly braces so they are not parsed by ExpressionScript.

Fix those and retest for other errors.
Cheers,
Tony Partner
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4 years 6 months ago #226018 by Joffm
Replied by Joffm on topic Selecting questions based on a custom set of rules
In the meantime I am working on a a much shorter solution.

The first time I develop javascript by myself. 
[img


Let's see.

Joffm
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4 years 6 months ago #226022 by tpartner
Replied by tpartner on topic Selecting questions based on a custom set of rules
This would be my JavaScript approach:

1) Shuffle the A array
2) Loop through the 8 "ttt" values in the shuffled array and add the first object found to a new array "questionObjects"
3) Remove those objects from the shuffled array
4) Remove all of the previously selected "xn" values from the shuffled array
5) Find the first object in this newly filtered array and add it to "questionObjects"
6) Remove all objects with the same "ttt" value as above from the shuffled array
7) Again, find the first object in this newly filtered array and add it to "questionObjects"
8) Load the question input with the "id" values from "questionObjects" and with the "id" values from the corresponding (from "relID") objects in the B array
 
 
Code:
<script type="text/javascript" data-author="Tony Partner"> $(document).on('ready pjax:scriptcomplete',function(){ var questionsArrayA = [ { "id":"001","ttt":"7","xn":"F4","relID":"1" }, { "id":"002","ttt":"7","xn":"F4","relID":"2" }, { "id":"003","ttt":"7","xn":"E3","relID":"3" }, { "id":"004","ttt":"7","xn":"E3","relID":"4" }, { "id":"005","ttt":"7","xn":"F4","relID":"5" }, { "id":"006","ttt":"7","xn":"F4","relID":"6" }, { "id":"007","ttt":"7","xn":"E3","relID":"7" }, { "id":"008","ttt":"7","xn":"E3","relID":"8" }, { "id":"009","ttt":"7","xn":"D2","relID":"9" }, { "id":"010","ttt":"7","xn":"D2","relID":"10" }, { "id":"011","ttt":"8","xn":"D1","relID":"11" }, { "id":"012","ttt":"8","xn":"D1","relID":"12" }, { "id":"013","ttt":"7","xn":"D2","relID":"13" }, { "id":"014","ttt":"7","xn":"D2","relID":"14" }, { "id":"015","ttt":"8","xn":"D1","relID":"15" }, { "id":"016","ttt":"8","xn":"D1","relID":"16" }, { "id":"017","ttt":"1","xn":"C6","relID":"17" }, { "id":"018","ttt":"1","xn":"C6","relID":"18" }, { "id":"019","ttt":"2","xn":"B5","relID":"19" }, { "id":"020","ttt":"2","xn":"B5","relID":"20" }, { "id":"021","ttt":"1","xn":"C6","relID":"21" }, { "id":"022","ttt":"1","xn":"C6","relID":"22" }, { "id":"023","ttt":"2","xn":"B5","relID":"23" }, { "id":"024","ttt":"2","xn":"B5","relID":"24" }, { "id":"025","ttt":"5","xn":"A4","relID":"25" }, { "id":"026","ttt":"5","xn":"A3","relID":"26" }, { "id":"027","ttt":"5","xn":"A4","relID":"27" }, { "id":"028","ttt":"5","xn":"A3","relID":"28" }, { "id":"029","ttt":"5","xn":"C2","relID":"29" }, { "id":"030","ttt":"6","xn":"B1","relID":"30" }, { "id":"031","ttt":"5","xn":"C2","relID":"31" }, { "id":"032","ttt":"6","xn":"B1","relID":"32" }, { "id":"033","ttt":"1","xn":"A6","relID":"33" }, { "id":"034","ttt":"1","xn":"A6","relID":"34" }, { "id":"035","ttt":"2","xn":"A5","relID":"35" }, { "id":"036","ttt":"2","xn":"A5","relID":"36" }, { "id":"037","ttt":"5","xn":"A4","relID":"37" }, { "id":"038","ttt":"5","xn":"A3","relID":"38" }, { "id":"039","ttt":"5","xn":"A4","relID":"39" }, { "id":"040","ttt":"5","xn":"A3","relID":"40" }, { "id":"041","ttt":"1","xn":"A6","relID":"41" }, { "id":"042","ttt":"1","xn":"A6","relID":"42" }, { "id":"043","ttt":"2","xn":"A5","relID":"43" }, { "id":"044","ttt":"2","xn":"A5","relID":"44" }, { "id":"045","ttt":"5","xn":"C2","relID":"45" }, { "id":"046","ttt":"6","xn":"B1","relID":"46" }, { "id":"047","ttt":"5","xn":"C2","relID":"47" }, { "id":"048","ttt":"6","xn":"B1","relID":"48" }, { "id":"049","ttt":"1","xn":"C6","relID":"49" }, { "id":"050","ttt":"1","xn":"C6","relID":"50" }, { "id":"051","ttt":"2","xn":"B5","relID":"51" }, { "id":"052","ttt":"2","xn":"B5","relID":"52" }, { "id":"053","ttt":"1","xn":"C6","relID":"53" }, { "id":"054","ttt":"1","xn":"C6","relID":"54" }, { "id":"055","ttt":"2","xn":"B5","relID":"55" }, { "id":"056","ttt":"2","xn":"B5","relID":"56" }, { "id":"057","ttt":"1","xn":"A8","relID":"57" }, { "id":"058","ttt":"1","xn":"A8","relID":"58" }, { "id":"059","ttt":"2","xn":"A7","relID":"59" }, { "id":"060","ttt":"2","xn":"A7","relID":"60" }, { "id":"061","ttt":"1","xn":"A8","relID":"61" }, { "id":"062","ttt":"1","xn":"A8","relID":"62" }, { "id":"063","ttt":"2","xn":"A7","relID":"63" }, { "id":"064","ttt":"2","xn":"A7","relID":"64" }, { "id":"065","ttt":"7","xn":"F4","relID":"65" }, { "id":"066","ttt":"7","xn":"F4","relID":"66" }, { "id":"067","ttt":"7","xn":"E3","relID":"67" }, { "id":"068","ttt":"7","xn":"E3","relID":"68" }, { "id":"069","ttt":"7","xn":"F4","relID":"69" }, { "id":"070","ttt":"7","xn":"F4","relID":"70" }, { "id":"071","ttt":"7","xn":"E3","relID":"71" }, { "id":"072","ttt":"7","xn":"E3","relID":"72" }, { "id":"073","ttt":"3","xn":"D6","relID":"73" }, { "id":"074","ttt":"4","xn":"D5","relID":"74" }, { "id":"075","ttt":"3","xn":"D6","relID":"75" }, { "id":"076","ttt":"4","xn":"D5","relID":"76" }, { "id":"077","ttt":"3","xn":"F8","relID":"77" }, { "id":"078","ttt":"4","xn":"E7","relID":"78" }, { "id":"079","ttt":"3","xn":"F8","relID":"79" }, { "id":"080","ttt":"4","xn":"E7","relID":"80" }, { "id":"081","ttt":"7","xn":"D4","relID":"81" }, { "id":"082","ttt":"7","xn":"D4","relID":"82" }, { "id":"083","ttt":"7","xn":"D3","relID":"83" }, { "id":"084","ttt":"7","xn":"D3","relID":"84" }, { "id":"085","ttt":"3","xn":"D6","relID":"85" }, { "id":"086","ttt":"4","xn":"D5","relID":"86" }, { "id":"087","ttt":"3","xn":"D6","relID":"87" }, { "id":"088","ttt":"4","xn":"D5","relID":"88" }, { "id":"089","ttt":"7","xn":"D4","relID":"89" }, { "id":"090","ttt":"7","xn":"D4","relID":"90" }, { "id":"091","ttt":"7","xn":"D3","relID":"91" }, { "id":"092","ttt":"7","xn":"D3","relID":"92" }, { "id":"093","ttt":"3","xn":"F8","relID":"93" }, { "id":"094","ttt":"4","xn":"E7","relID":"94" }, { "id":"095","ttt":"3","xn":"F8","relID":"95" }, { "id":"096","ttt":"4","xn":"E7","relID":"96" } ]; var questionsArrayB = [ { "id":"097","ttt":"7","xn":"F4","relID":"1" }, { "id":"098","ttt":"7","xn":"F4","relID":"2" }, { "id":"099","ttt":"7","xn":"E3","relID":"3" }, { "id":"100","ttt":"7","xn":"E3","relID":"4" }, { "id":"101","ttt":"7","xn":"F4","relID":"5" }, { "id":"102","ttt":"7","xn":"F4","relID":"6" }, { "id":"103","ttt":"7","xn":"E3","relID":"7" }, { "id":"104","ttt":"7","xn":"E3","relID":"8" }, { "id":"105","ttt":"7","xn":"D2","relID":"9" }, { "id":"106","ttt":"7","xn":"D2","relID":"10" }, { "id":"107","ttt":"8","xn":"D1","relID":"11" }, { "id":"108","ttt":"8","xn":"D1","relID":"12" }, { "id":"109","ttt":"7","xn":"D2","relID":"13" }, { "id":"110","ttt":"7","xn":"D2","relID":"14" }, { "id":"111","ttt":"8","xn":"D1","relID":"15" }, { "id":"112","ttt":"8","xn":"D1","relID":"16" }, { "id":"113","ttt":"1","xn":"C6","relID":"17" }, { "id":"114","ttt":"1","xn":"C6","relID":"18" }, { "id":"115","ttt":"2","xn":"B5","relID":"19" }, { "id":"116","ttt":"2","xn":"B5","relID":"20" }, { "id":"117","ttt":"1","xn":"C6","relID":"21" }, { "id":"118","ttt":"1","xn":"C6","relID":"22" }, { "id":"119","ttt":"2","xn":"B5","relID":"23" }, { "id":"120","ttt":"2","xn":"B5","relID":"24" }, { "id":"121","ttt":"5","xn":"A4","relID":"25" }, { "id":"122","ttt":"5","xn":"A3","relID":"26" }, { "id":"123","ttt":"5","xn":"A4","relID":"27" }, { "id":"124","ttt":"5","xn":"A3","relID":"28" }, { "id":"125","ttt":"5","xn":"C2","relID":"29" }, { "id":"126","ttt":"6","xn":"B1","relID":"30" }, { "id":"127","ttt":"5","xn":"C2","relID":"31" }, { "id":"128","ttt":"6","xn":"B1","relID":"32" }, { "id":"129","ttt":"1","xn":"A6","relID":"33" }, { "id":"130","ttt":"1","xn":"A6","relID":"34" }, { "id":"131","ttt":"2","xn":"A5","relID":"35" }, { "id":"132","ttt":"2","xn":"A5","relID":"36" }, { "id":"133","ttt":"5","xn":"A4","relID":"37" }, { "id":"134","ttt":"5","xn":"A3","relID":"38" }, { "id":"135","ttt":"5","xn":"A4","relID":"39" }, { "id":"136","ttt":"5","xn":"A3","relID":"40" }, { "id":"137","ttt":"1","xn":"A6","relID":"41" }, { "id":"138","ttt":"1","xn":"A6","relID":"42" }, { "id":"139","ttt":"2","xn":"A5","relID":"43" }, { "id":"140","ttt":"2","xn":"A5","relID":"44" }, { "id":"141","ttt":"5","xn":"C2","relID":"45" }, { "id":"142","ttt":"6","xn":"B1","relID":"46" }, { "id":"143","ttt":"5","xn":"C2","relID":"47" }, { "id":"144","ttt":"6","xn":"B1","relID":"48" }, { "id":"145","ttt":"1","xn":"C6","relID":"49" }, { "id":"146","ttt":"1","xn":"C6","relID":"50" }, { "id":"147","ttt":"2","xn":"B5","relID":"51" }, { "id":"148","ttt":"2","xn":"B5","relID":"52" }, { "id":"149","ttt":"1","xn":"C6","relID":"53" }, { "id":"150","ttt":"1","xn":"C6","relID":"54" }, { "id":"151","ttt":"2","xn":"B5","relID":"55" }, { "id":"152","ttt":"2","xn":"B5","relID":"56" }, { "id":"153","ttt":"1","xn":"A8","relID":"57" }, { "id":"154","ttt":"1","xn":"A8","relID":"58" }, { "id":"155","ttt":"2","xn":"A7","relID":"59" }, { "id":"156","ttt":"2","xn":"A7","relID":"60" }, { "id":"157","ttt":"1","xn":"A8","relID":"61" }, { "id":"158","ttt":"1","xn":"A8","relID":"62" }, { "id":"159","ttt":"2","xn":"A7","relID":"63" }, { "id":"160","ttt":"2","xn":"A7","relID":"64" }, { "id":"161","ttt":"7","xn":"F4","relID":"65" }, { "id":"162","ttt":"7","xn":"F4","relID":"66" }, { "id":"163","ttt":"7","xn":"E3","relID":"67" }, { "id":"164","ttt":"7","xn":"E3","relID":"68" }, { "id":"165","ttt":"7","xn":"F4","relID":"69" }, { "id":"166","ttt":"7","xn":"F4","relID":"70" }, { "id":"167","ttt":"7","xn":"E3","relID":"71" }, { "id":"168","ttt":"7","xn":"E3","relID":"72" }, { "id":"169","ttt":"3","xn":"D6","relID":"73" }, { "id":"170","ttt":"4","xn":"D5","relID":"74" }, { "id":"171","ttt":"3","xn":"D6","relID":"75" }, { "id":"172","ttt":"4","xn":"D5","relID":"76" }, { "id":"173","ttt":"3","xn":"F8","relID":"77" }, { "id":"174","ttt":"4","xn":"E7","relID":"78" }, { "id":"175","ttt":"3","xn":"F8","relID":"79" }, { "id":"176","ttt":"4","xn":"E7","relID":"80" }, { "id":"177","ttt":"7","xn":"D4","relID":"81" }, { "id":"178","ttt":"7","xn":"D4","relID":"82" }, { "id":"179","ttt":"7","xn":"D3","relID":"83" }, { "id":"180","ttt":"7","xn":"D3","relID":"84" }, { "id":"181","ttt":"3","xn":"D6","relID":"85" }, { "id":"182","ttt":"4","xn":"D5","relID":"86" }, { "id":"183","ttt":"3","xn":"D6","relID":"87" }, { "id":"184","ttt":"4","xn":"D5","relID":"88" }, { "id":"185","ttt":"7","xn":"D4","relID":"89" }, { "id":"186","ttt":"7","xn":"D4","relID":"90" }, { "id":"187","ttt":"7","xn":"D3","relID":"91" }, { "id":"188","ttt":"7","xn":"D3","relID":"92" }, { "id":"189","ttt":"3","xn":"F8","relID":"93" }, { "id":"190","ttt":"4","xn":"E7","relID":"94" }, { "id":"191","ttt":"3","xn":"F8","relID":"95" }, { "id":"192","ttt":"4","xn":"E7","relID":"96" } ]; // Shuffle questionsArrayA var shuffledA = shuffleArray(questionsArrayA); var questionObjects = []; var questionXns = []; var questionIDs = []; var questionRelIDs = []; //Loop through the 8 "ttt" values in the shuffled array for(var i=1; i <= 8; i++){ var tttValue = i; // Find the first object in the questionObjects array with this "ttt" var filteredItems = shuffledA.filter(function(obj) { return (obj.ttt == tttValue); }); var item1 = filteredItems[0]; // Add this first object to the questionObjects array questionObjects.push(item1); // Add this first object "xn" value to the questionXns array questionXns.push(item1.xn); // Add this first object "id" value to the questionIDs array questionIDs.push(item1.id); questionRelIDs.push(item1.relID); // Remove this first object from the shuffled array var shuffledA = shuffledA.filter(function(obj) { return (obj.id !== item1.id); }); } // Remove all of the previously selected "xn" values from the shuffled array var shuffledA2 = shuffledA; $.each(questionXns, function(i, val) { shuffledA2 = shuffledA2.filter(function(obj) { return (obj.xn !== val); }); }); // Find the first object in this newly filtered array var filteredItem1 = shuffledA2[0]; var filteredItem1Ttt = filteredItem1.ttt; // Add the first object in the newly filtered shuffled array to the questionObjects array questionObjects.push(filteredItem1); // Add this first object "id" value to the questionIDs array questionIDs.push(filteredItem1.id); questionRelIDs.push(filteredItem1.relID); // Now remove all objects with the same "ttt" value from the shuffled array shuffledA2 = shuffledA2.filter(function(obj) { return (obj.ttt !== filteredItem1Ttt); }); // Again, find the first object in this newly filtered array var filteredItem2 = shuffledA2[0]; // Again, add the first object in the newly filtered shuffled array to the questionObjects array questionObjects.push(filteredItem2); // Add this first object "id" value to the questionIDs array questionIDs.push(filteredItem2.id); questionRelIDs.push(filteredItem2.relID); // Add the associated "id" values from the questionsArrayB array to the questionIDs array $.each(questionRelIDs, function(i, val) { var bObject = questionsArrayB.filter(function(obj) { return (obj. "questionObjects" == val); })[0]; questionIDs.push(bObject.id); }); $('#question{QID} input[type="text"]').val('#,'+questionIDs).trigger('keyup'); //$('#question{QID}').hide(); //$('#ls-button-submit').trigger('click'); function shuffleArray(array) { for (var i = array.length - 1; i > 0; i--) { var j = Math.floor(Math.random() * (i + 1)); var temp = array[i]; array[i] = array[j]; array[j] = temp; } return array; } }); </script>

Sample survey attached: 

File Attachment:

File Name: limesurvey...2(1).lss
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Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.
The following user(s) said Thank You: holch

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4 years 6 months ago #226030 by Moathh
Replied by Moathh on topic Selecting questions based on a custom set of rules
Thank you so much Tony!! Worked like a charm :)

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4 years 6 months ago #226031 by tpartner
Replied by tpartner on topic Selecting questions based on a custom set of rules
But I still want to see Joffm's ideas. :)
Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.

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4 years 6 months ago #226032 by Moathh
Replied by Moathh on topic Selecting questions based on a custom set of rules
Thanks Joffm ! It will be interesting to see another solution :)

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4 years 6 months ago #226033 by Moathh
Replied by Moathh on topic Selecting questions based on a custom set of rules
Me too! you were faster though :)

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4 years 6 months ago #226050 by Joffm
Replied by Joffm on topic Selecting questions based on a custom set of rules

But I still want to see Joffm's ideas.

Oh, really?
And I tell you it is more or less the same approach.
Of course the code is much more clumpsy. But with the help of W3Schools...
But as it was my first own script I am really proud.

But I used a different way to define the questions.
I joined the values and created eight arrays (8 ttt groups)
The relID is not necessary as it is the same as the id. But you can add it as well. Or you add the number of the corresponding question.
Code:
var questionsArray1 = ["0011A6", "0021A6", "0031A6", "0041A6", "0051A8", "0061A8", "0071A8", "0081A8", "0091C6", "0101C6", "0111C6", "0121C6", "0131C6", "0141C6", "0151C6", "0161C6"]; var questionsArray2 = ["0172A5", "0182A5", "0192A5", "0202A5", "0212A7", "0222A7", "0232A7", "0242A7", "0252B5", "0262B5", "0272B5", "0282B5", "0292B5", "0302B5", "0312B5", "0322B5"];

Now I can capture the ttt-value as "substr(string,3.1)" and the xn-value as "substr(string,4,2)"
Now
1) Shuffle the arrays
2) Add the first objects of each array to a new array "finalArray"
3) Remove those objects from the shuffled arrays
4) Joined the eight arrays to one "restArray"
5) Remove all of the previously selected "xn" values from this array
6) Shuffle the "restArray"
7) Find the first object in this "restArray" and add it to "finalArray"
8) Remove all objects with the same "ttt" value as above from the array
9) Shuffle the "restArray"
10) Again, find the first object in this  array and add it to "finalArray"

Now there are 10 objects in the "finalArray".
Either you load the "substr(string,0,3)" into the question or you leave it for later use of ttt and xn.
As the IDs of array B are only IDArrayA+96 you can easily calculate

Joffm




 
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4 years 6 months ago #226051 by Joffm
Replied by Joffm on topic Selecting questions based on a custom set of rules
I saw this typo. Of course it is a comma.
But this editor ..
[img

Now I can capture the ttt-value as "substr(string,3,1)" and the xn-value as "substr(string,4,2)"
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4 years 6 months ago #226059 by tpartner
Replied by tpartner on topic Selecting questions based on a custom set of rules
Hi Joffm, thanks for this.

W3Schools is a great resource. :)

I think both approaches have their benefits.

Yours relies on knowing the array lengths and position in strings so may be slightly more efficient.

Mine determines array lengths programmatically and uses more objects than strings so would require slightly more code but may be more flexible.
Cheers,
Tony Partner
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