var _construct = function()

in datawig-js/static/jspsych-6.1.0/jspsych.js [702:767]

• 58 lines of code
• 21 McCabe index (conditional complexity)

    var _construct = function() {

      // store a link to the parent of this node
      parent_node = parent;

      // create the ID for this node
      if (typeof parent == 'undefined') {
        relative_id = 0;
      } else {
        relative_id = relativeID;
      }

      // check if there is a timeline parameter
      // if there is, then this node has its own timeline
      if ((typeof parameters.timeline !== 'undefined') || (typeof jsPsych.plugins[trial_type] == 'function')) {

        // create timeline properties
        timeline_parameters = {
          timeline: [],
          loop_function: parameters.loop_function,
          conditional_function: parameters.conditional_function,
          sample: parameters.sample,
          randomize_order: typeof parameters.randomize_order == 'undefined' ? false : parameters.randomize_order,
          repetitions: typeof parameters.repetitions == 'undefined' ? 1 : parameters.repetitions,
          timeline_variables: typeof parameters.timeline_variables == 'undefined' ? [{}] : parameters.timeline_variables
        };

        self.setTimelineVariablesOrder();

        // extract all of the node level data and parameters
        var node_data = Object.assign({}, parameters);
        delete node_data.timeline;
        delete node_data.conditional_function;
        delete node_data.loop_function;
        delete node_data.randomize_order;
        delete node_data.repetitions;
        delete node_data.timeline_variables;
        delete node_data.sample;
        node_trial_data = node_data; // store for later...

        // create a TimelineNode for each element in the timeline
        for (var i = 0; i < parameters.timeline.length; i++) {
          // merge parameters
          var merged_parameters = Object.assign({}, node_data, parameters.timeline[i]);
          // merge any data from the parent node into child nodes
          if(typeof node_data.data == 'object' && typeof parameters.timeline[i].data == 'object'){
            var merged_data = Object.assign({}, node_data.data, parameters.timeline[i].data);
            merged_parameters.data = merged_data;
          }
          timeline_parameters.timeline.push(new TimelineNode(merged_parameters, self, i));
        }
      }
      // if there is no timeline parameter, then this node is a trial node
      else {
        // check to see if a valid trial type is defined
        var trial_type = parameters.type;
        if (typeof trial_type == 'undefined') {
          console.error('Trial level node is missing the "type" parameter. The parameters for the node are: ' + JSON.stringify(parameters));
        } else if ((typeof jsPsych.plugins[trial_type] == 'undefined') && (trial_type.toString().replace(/\s/g,'') != "function(){returntimeline.timelineVariable(varname);}")) {
          console.error('No plugin loaded for trials of type "' + trial_type + '"');
        }
        // create a deep copy of the parameters for the trial
        trial_parameters = Object.assign({}, parameters);
      }

    }();