Update multiple features attributes in loop - JavaScript

I am trying to update multiple features in a feature layer through a loop.

I have a feature layer that I would like to select and then assign someone to the features (through an attribute update. I can select the features and see all of the attributes but I can't figure out how to update the the features. See below for a sample of what I am trying to do. Right now it is a bit messy where I am trying to set the visibility of a form and button on after the selection so the user can choose an assignment.

Has anyone updated multiple features without using the attribute inspector or editor widget which I have only seen examples for editing a feature at a time.

 var map, geocoder, currentBaseMap, assignWindow, featureLayer;
 var locatorUrl ="http://gisaprd/ArcGIS/rest/services/SDE.AddressLocator_Comp/GeocodeServer";
 var selectedPoints = new Array();

require([
"esri/InfoTemplate",
"esri/map",
"esri/layers/FeatureLayer",
"esri/layers/ArcGISTiledMapServiceLayer",
"esri/layers/ArcGISDynamicMapServiceLayer",
"esri/dijit/Geocoder",
"esri/symbols/SimpleFillSymbol",
"esri/symbols/SimpleLineSymbol",
"esri/tasks/query",
"esri/toolbars/draw",
"dojo/dom",
"dojo/on",
"dojo/parser",
"dojo/_base/array",
"dojo/_base/Color",
"dijit/form/Button",
"dojo/domReady!"
 ],
 function (
 InfoTemplate, Map, FeatureLayer, ArcGISTiledMapServiceLayer, ArcGISDynamicMapServiceLayer,         Geocoder, SimpleFillSymbol, SimpleLineSymbol,
Query, Draw, dom, on, parser, arrayUtil, Color
 ) {

  parser.parse();

  var selectionToolbar, featureLayer;

  // Create the map
  map = new Map("map")

  aerialsLayer = new esri.layers.ArcGISTiledMapServiceLayer("http://gisaprd/ArcGIS/rest/services/Aerials_4inch_12inch_Cached/MapServer", { "id": "Aerials", "visible": false });
  map.addLayer(aerialsLayer);

  streetsLayer = new esri.layers.ArcGISDynamicMapServiceLayer("http://gisaprd/ArcGIS/rest/services/SRSLandbase/MapServer", { "id": "Streets" });
  map.addLayer(streetsLayer);
  currentBaseMap = "Streets";

  map.on("load", initSelectToolbar);

  document.getElementById("AssignFrm").style.visibility = "hidden";
  document.getElementById("AssignBTN").style.visibility = "hidden";

  highlightSymbol = new esri.symbol.SimpleMarkerSymbol().setColor(new dojo.Color([255, 255, 0]));

  var content = "<b>Address</b>: ${SDE.GasServiceLocation.LOCATIONDESCRIPTION}";
  var infoTemplate = new InfoTemplate("${SDE.GasServiceLocation.CU_ID}", content);

  featureLayer = new FeatureLayer("http://gisadev:6080/arcgis/rest/services/ISS_Inspections/FeatureServer/0",
    {
        mode: FeatureLayer.MODE_ONDEMAND,
        infoTemplate: infoTemplate,
        outFields: ["*"]
    });

  featureLayer.setSelectionSymbol(highlightSymbol);
  featureLayer.on("selection-complete", createListForAssignment);
  //featureLayer.on("selection-clear", function () {
  //    dom.byId('messages').innerHTML = "<i>No Selected Fields</i>";
  //});
  map.addLayer(featureLayer);

  var myGeocoders = [{
      url: locatorUrl,
      name: "SDE.AddressLocator_Comp"
  }];
  geocoder = new Geocoder({
      map: map,
      autoComplete: true,
      arcgisGeocoder: false,
      geocoders: myGeocoders,
      value: "",
      zoomScale: 1200

  }, "search");
  geocoder.startup();

  on(dom.byId("selectFieldsButton"), "click", function () {
      selectionToolbar.activate(Draw.EXTENT);
  });
  on(dom.byId("clearSelectionButton"), "click", function () {
      featureLayer.clearSelection();
  });
  on(dom.byId("BaseMapToggle"), "click", ChangeBaseMap);
  //on(dom.byId("assignCrew"), "click", AssignInspectionCrew);

  function initSelectToolbar(event) {
      selectionToolbar = new Draw(event.map);
      var selectQuery = new Query();

      on(selectionToolbar, "DrawEnd", function (geometry) {
          selectionToolbar.deactivate();
          selectQuery.geometry = geometry;
          featureLayer.selectFeatures(selectQuery,
            FeatureLayer.SELECTION_NEW);          
     });
  }
  function ChangeBaseMap() {
      if (currentBaseMap == "Streets") {
          currentBaseMap = "Aerials";

          aerialsLayer.setVisibility(true);
      }
      else if (currentBaseMap == "Aerials") {
          currentBaseMap = "Streets";
          aerialsLayer.setVisibility(false);
      }
  }
  function createListForAssignment(event) {
      document.getElementById("AssignFrm").style.visibility = "visible";
      document.getElementById("AssignBTN").style.visibility = "visible";

      arrayUtil.forEach(event.features, function (feature, index) {
          selectedPoints.push(feature);
      });
   }
  });
  function assign() {
  if (document.getElementById('Jordan').checked) {
    x = document.getElementById('Jordan').value;
    for (var i = 0; i < selectedPoints.length; i++) {
        selectedPoints[i].attributes.ASSIGNED_TO = x;
    }
  }
  else {
    y = document.getElementById('Trenton').value;
    alert(y);
  }
  }