diff --git a/src/js/collections/maps/AssetCategories.js b/src/js/collections/maps/AssetCategories.js
index 641a6f481..4625eff8e 100644
--- a/src/js/collections/maps/AssetCategories.js
+++ b/src/js/collections/maps/AssetCategories.js
@@ -5,7 +5,7 @@ define([
   "models/maps/AssetCategory",
   "models/maps/Map",
   "collections/maps/MapAssets",
-], function (Backbone, AssetCategory, MapModel, MapAssets) {
+], (Backbone, AssetCategory, MapModel, MapAssets) => {
   /**
    * @classdesc AssetCategories collection is a group of AssetCategory models - models
    * that provide the information required to render geo-spatial data in categories,
@@ -53,9 +53,7 @@ define([
        * @returns {MapAssets[]} A list of MapAssets collections.
        */
       getMapAssets() {
-        return this.map((assetCategory) => {
-          return assetCategory.get("mapAssets");
-        });
+        return this.map((assetCategory) => assetCategory.get("mapAssets"));
       },
     },
   );
diff --git a/src/js/collections/maps/viewfinder/ZoomPresets.js b/src/js/collections/maps/viewfinder/ZoomPresets.js
index 0be1c3c72..f992eec2b 100644
--- a/src/js/collections/maps/viewfinder/ZoomPresets.js
+++ b/src/js/collections/maps/viewfinder/ZoomPresets.js
@@ -4,7 +4,16 @@ define([
   "underscore",
   "backbone",
   "models/maps/viewfinder/ZoomPresetModel",
-], function (_, Backbone, ZoomPresetModel) {
+], (_, Backbone, ZoomPresetModel) => {
+  /**
+   * Determine if array is empty. 
+   * @param {Array} a The array in question.
+   * @returns {boolean} Whether the array is empty. 
+   */
+  function isNonEmptyArray(a) {
+    return a && a.length && Array.isArray(a);
+  }
+
   /**
    * @class ZoomPresets
    * @classdesc A ZoomPresets collection is a group of ZoomPresetModel models
@@ -12,9 +21,9 @@ define([
    * selects.
    * @class ZoomPresets
    * @classcategory Collections/Maps
-   * @extends Backbone.Collection
+   * @augments Backbone.Collection
    * @since 2.29.0
-   * @constructor
+   * @class
    */
   const ZoomPresets = Backbone.Collection.extend(
     /** @lends ZoomPresets.prototype */ {
@@ -22,17 +31,27 @@ define([
       model: ZoomPresetModel,
 
       /**
-       * @param {Object[]} zoomPresets The raw list of objects that represent
+       * @typedef {object} ZoomPresetsParseOptions
+       * @property {object} zoomPresets The raw list of objects that represent
        * the zoom presets, to be converted into ZoomPresetModels.
-       * @param {MapAsset[]} allLayers All of the layers available for display
+       * @property {MapAsset[]} allLayers All of the layers available for display
        * in the map.
        */
+
+      /**
+       * Parse values and return a list of models for creating a 
+       * Backbone.Collection.
+       * @param {ZoomPresetsParseOptions} object Values to be parsed into the 
+       * Backbone.Collection.
+       * @returns {ZoomPresets} A collection of models representative of the 
+       * values passed in.
+       */
       parse({ zoomPresetObjects, allLayers }) {
         if (isNonEmptyArray(zoomPresetObjects)) {
           const zoomPresets = zoomPresetObjects.map((zoomPresetObj) => {
             const enabledLayerIds = [];
             const enabledLayerLabels = [];
-            for (const layer of allLayers.models) {
+            allLayers.models.forEach(layer => {
               if (
                 zoomPresetObj.layerIds?.find(
                   (id) => id === layer.get("layerId"),
@@ -41,7 +60,7 @@ define([
                 enabledLayerIds.push(layer.get("layerId"));
                 enabledLayerLabels.push(layer.get("label"));
               }
-            }
+            });
 
             return new ZoomPresetModel(
               {
@@ -67,9 +86,5 @@ define([
     },
   );
 
-  function isNonEmptyArray(a) {
-    return a && a.length && Array.isArray(a);
-  }
-
   return ZoomPresets;
 });
diff --git a/src/js/models/maps/Map.js b/src/js/models/maps/Map.js
index 0df6f2f38..094065e98 100644
--- a/src/js/models/maps/Map.js
+++ b/src/js/models/maps/Map.js
@@ -9,7 +9,7 @@ define([
   "collections/maps/AssetCategories",
   "models/maps/GeoPoint",
   "collections/maps/viewfinder/ZoomPresets",
-], function (
+], (
   $,
   _,
   Backbone,
@@ -18,7 +18,16 @@ define([
   AssetCategories,
   GeoPoint,
   ZoomPresets,
-) {
+) => {
+  /**
+   * Determine if array is empty. 
+   * @param {Array} a The array in question.
+   * @returns {boolean} Whether the array is empty. 
+   */
+  function isNonEmptyArray(a) {
+    return a && a.length && Array.isArray(a);
+  }
+
   /**
    * @class MapModel
    * @classdesc The Map Model contains all of the settings and options for a
@@ -26,16 +35,16 @@ define([
    * @classcategory Models/Maps
    * @name MapModel
    * @since 2.18.0
-   * @extends Backbone.Model
+   * @augments Backbone.Model
    */
-  var MapModel = Backbone.Model.extend(
+  const MapModel = Backbone.Model.extend(
     /** @lends MapModel.prototype */ {
       /**
        * Configuration options for a {@link MapModel} that control the
        * appearance of the map, the data/imagery displayed, and which UI
        * components are rendered. A MapConfig object can be used when
        * initializing a Map model, e.g. `new Map(myMapConfig)`
-       * @namespace {Object} MapConfig
+       * @namespace {object} MapConfig
        * @property {MapConfig#CameraPosition} [homePosition] - A set of
        * coordinates that give the (3D) starting point of the Viewer. This
        * position is also where the "home" button in the Cesium widget will
@@ -134,7 +143,7 @@ define([
       /**
        * Coordinates that describe a camera position for Cesium. Requires at
        * least a longitude and latitude.
-       * @typedef {Object} MapConfig#CameraPosition
+       * @typedef {object} MapConfig#CameraPosition
        * @property {number} longitude - Longitude of the central home point
        * @property {number} latitude - Latitude of the central home point
        * @property {number} [height] - Height above sea level (meters)
@@ -227,7 +236,7 @@ define([
        * UI appears within the ViewfinderView.
        * UI appears within the ViewfinderView.
        */
-      defaults: function () {
+      defaults() {
         return {
           homePosition: {
             longitude: -65,
@@ -266,13 +275,9 @@ define([
        * for the map. If any config option is not specified, the default will be
        * used instead (see {@link MapModel#defaults}).
        */
-      initialize: function (config) {
+      initialize(config) {
         try {
           if (config && config instanceof Object) {
-            function isNonEmptyArray(a) {
-              return a && a.length && Array.isArray(a);
-            }
-
             if (isNonEmptyArray(config.layerCategories)) {
               const assetCategories = new AssetCategories(
                 config.layerCategories,
@@ -316,7 +321,7 @@ define([
        * @returns {MapInteraction} The new interactions model.
        * @since 2.27.0
        */
-      setUpInteractions: function () {
+      setUpInteractions() {
         const interactions = new Interactions({
           mapModel: this,
         });
@@ -330,7 +335,7 @@ define([
        * @param {Feature[]} features - An array of Feature models to select.
        * since 2.28.0
        */
-      selectFeatures: function (features) {
+      selectFeatures(features) {
         this.get("interactions")?.selectFeatures(features);
       },
 
@@ -339,7 +344,7 @@ define([
        * @returns {Features} The selected Feature collection.
        * @since 2.27.0
        */
-      getSelectedFeatures: function () {
+      getSelectedFeatures() {
         return this.get("interactions")?.get("selectedFeatures");
       },
 
@@ -352,14 +357,14 @@ define([
        * zoom to. See {@link CesiumWidgetView#flyTo} for more details on types
        * of targets.
        */
-      zoomTo: function (target) {
+      zoomTo(target) {
         this.get("interactions")?.set("zoomTarget", target);
       },
 
       /**
        * Indicate that the map widget view should navigate to the home position.
        */
-      flyHome: function () {
+      flyHome() {
         this.zoomTo(this.get("homePosition"));
       },
 
@@ -379,7 +384,7 @@ define([
        * @returns {MapAssets} The new layers collection.
        * @since 2.25.0
        */
-      resetLayers: function () {
+      resetLayers() {
         const newLayers = this.defaults()?.layers || new MapAssets();
         this.set("layers", newLayers);
         return newLayers;
@@ -410,7 +415,7 @@ define([
        * @returns {MapAsset} The new layer model.
        * @since 2.25.0
        */
-      addAsset: function (asset) {
+      addAsset(asset) {
         const layers = this.get("layers") || this.resetLayers();
         return layers.addAsset(asset, this);
       },
@@ -420,7 +425,7 @@ define([
        * @param {MapAsset} asset - The layer model to remove from the map.
        * @since 2.27.0
        */
-      removeAsset: function (asset) {
+      removeAsset(asset) {
         if (!asset) return;
         const layers = this.get("layers");
         if (!layers) return;