altinn-designsystem/source/js/production/modules/questionnaireInteraction.js

Altinn Design system based on Pattern Lab.

/* globals $ */
var questionnaireInteraction = function() {
  $('.a-trigger-question').each(function() {
    $(this).find('input').on('change', function() {
      $(this).parent().parent().parent()
        .parent()
        .next()
        .css('display', 'block');
    });
  });
};