Dynamic properties

[y-j-huang]

I wanted to insert a variable in a likert scale question and the variable was previously stored in the data. I had the following code:

   var test_trial = {
        type: 'survey-multi-select',
        questions: jsPsych.timelineVariable('questions'),
            data:{
                trial_part: 'test',
                questions: jsPsych.timelineVariable('questions'),
                correct_response: jsPsych.timelineVariable('correct_response'),
            },
            on_finish: function(data) {
               var name = data.questions[0].name 
               data.name = name;
            }
    };

    var scale_1 = [
      "1", 
      "2", 
      "3", 
      "4", 
      "5"
    ];
    
    var likert_page = {
      type: 'survey-likert',
      questions: [
        {
         prompt: function() {  
            var name = jsPsych.data.getLastTrialData().values()[0].name;
            var text = "How familiar are you with the word "+name+"?"
            return text;
      }, labels: scale_1}
      ]
    };


    var test = {
        timeline: [test_trial, likert_page],
        timeline_variables: stimuli_info,
    }


    timeline.push(test)

The whole function in the likert scale page was printed as text, i.e. the out put was " function() { var name=jsPsych.data.getLastTrialData().values()[0].name; var text = "How familiar are you with the word "+name+"?" return text;".

I would appreciate it very much if someone could point out what I did wrong with the code. Thank you!

[jodeleeuw]

Hi @y-j-huang,

Can you try updating to jsPsych 6.3.0? Previous versions of jsPsych didn't have support for using functions in nested parameters, but we added it in 6.3.0.

[y-j-huang]

I see. I saw that in the tutorial and didn't realized that my version was older than that. That fixes the problem. Thank you!