Description

This function will help you to update the custom variables for the respondents while they are answering the survey.

Syntax

$survey.updateCustomVariable("Custom Variable Index", "Value")

Example Script

Consider a multiple-select choice question, the number of options selected on the question can be stored as a count under a custom variable. We can fetch the value of the count by calling out the custom variable in the survey.

        /* get number of options selected in Q1 */
        var count = $survey.getSelectedCount("Q1");
         
        $survey.updateCustomVariable(1, count);
        document.forms['run'].onsubmit();

                   

Example Survey: Survey Link

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