(function ($, Drupal, drupalSettings) {
    "use strict";
    /**
     * Attaches the JS test behavior to weight div.
     */
    Drupal.behaviors.jsTestPurpleWeight = {
        attach: function(context, settings) {
            var weight = drupalSettings.js_example.js_weights.purple;
            var newDiv = $('<div></div>').css('color', 'purple').html('I have a weight of ' + weight);
            $('#js-weights').append(newDiv);
        }
    };
})(jQuery, Drupal, drupalSettings);