In Qualtrics Surveys, How Can You Use Javascript To Dynamically Set The Range Of A Slider?

I was making a survey in Qualtrics, and needed to have my items show different values of the slider depending on a variable, in my case, the value from a loop and merge. That didn'

Solution 1:

Put the following code into the javascript section of the question:

// Set the slider range// First define the function to do it
setSliderRange = function (theQuestionInfo, maxValue) {
    var postTag = theQuestionInfo.postTagvarQID=theQuestionInfo.QuestionID// QID should be like "QID421"// but postTag might be something like "5_QID421" sometimes// or, it might not exist, so play around a bit.var sliderName='CS_' + postTag
    window[sliderName].maxValue=maxValue
    // now do the ticks. first get the number of ticks by counting the table that contains themvar numTicks = document.getElementsByClassName('LabelDescriptionsContainer')[0].colSpan// do the ticks one at a timefor (var i=1; i<=numTicks; i++) {
        var tickHeader='header~' + QID + '~G' + i
        // the first item of the table contains the minimum value, and also the first tick.// so we do some tricks to separate them out in that case.var tickSpanArray = $(tickHeader).down("span.TickContainer").childrenvar tickSpanArrayLength=tickSpanArray.lengthvar lastTickIndex=tickSpanArrayLength - 1var currentTickValue = tickSpanArray[lastTickIndex].innerHTML
        currentTickValue=currentTickValue.replace(/^\s+|\s+$/g,'')
        console.log('Tick value ' + i + ' is ' + currentTickValue)
        // now get the new value for the tickconsole.log('maxValue: ' + maxValue + ' numTicks: ' + numTicks + ' i: ' + i)
        var newTickValue = maxValue * i / numTicks //the total number of ticks
        tickSpanArray[lastTickIndex].innerHTML=newTickValue.toString()
        console.log('Changed tick value to ' + newTickValue)
    }
}

var currentQuestionInfo = this.getQuestionInfo()
var currentQuestionID = currentQuestionInfo.QuestionID// Now call the functionsetSliderRange(currentQuestionInfo, theMaxValueYouWant)

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