Retrieving all timeline variables for a given trial

I currently have a design that uses a lot of timeline variables, and one annoying aspect is that I sometimes forget adding one of the timeline variables to the data section (I’m actually not sure why they are not automatically put into the data, as otherwise that information is just lost).

So some data section looks like this:

data: {
    segment: "word-classification",
    audiofile: jsPsych.timelineVariable('audiofile'),
    word: jsPsych.timelineVariable('word'),
    trial: jsPsych.timelineVariable('trial'),
    repetition: jsPsych.timelineVariable('repetition'),
    group: jsPsych.timelineVariable('group'),
    choices: jsPsych.timelineVariable('choices'),
}

This is because I couldn’t find a way to just retrieve all timeline variables, in which case I could just do something like:

data: jsPsych.allTimelineVariables()

Is it only possible to ask for one specific variable name and get back whether it exists or not, or is there not an actual list accessible somewhere?

[jkrumbiegel]

Thanks for fixing this!

[jodeleeuw]

I implemented a first pass at this in the features-all-timeline-vars branch. I added a single test case to the end of timeline-variables.test.js. It needs a lot of expansion to make sure this implementation works.