Typo corrections, I avoided making changes to words that have regional spelling differences.

platform/core/src/models/ModelCacheService.js

@@ -24,7 +24,7 @@ define([], function () {
 
     /**
      * Provides a cache for domain object models which exist in memory,
-     * but may or may not exist in backing persistene stores.
+     * but may or may not exist in backing persistence stores.
      * @constructor
      * @memberof platform/core
      */

platform/core/src/models/RootModelProvider.js

@@ -42,7 +42,7 @@ define(
          * @implements {ModelService}
          * @param {Array} roots all `roots[]` extensions
          * @param $q Angular's $q, for promises
-         * @param $log Anuglar's $log, for logging
+         * @param $log Angular's $log, for logging
          */
         function RootModelProvider(roots, $q, $log) {
             // Pull out identifiers to used as ROOT's

platform/core/src/models/StaticModelProvider.js

@@ -49,7 +49,7 @@ define(
                 }
             }
 
-            // Prepoulate maps with models to make subsequent lookup faster.
+            // Prepopulate maps with models to make subsequent lookup faster.
             models.forEach(addModelToMap);
 
             this.modelMap = modelMap;

platform/core/src/types/TypePropertyConversion.js

@@ -43,7 +43,7 @@ define(
             },
             ARRAY_SUFFIX = '[]';
 
-        // Utility function to handle arrays of conversiions
+        // Utility function to handle arrays of conversions
         function ArrayConversion(conversion) {
             return {
                 toModelValue: function (formValue) {

platform/core/src/types/TypeProvider.js

@@ -68,7 +68,7 @@ define(
             }) : array;
         }
 
-        // Reduce an array of type definitions to a single type definiton,
+        // Reduce an array of type definitions to a single type definition,
         // which has merged all properties in order.
         function collapse(typeDefs) {
             var collapsed = typeDefs.reduce(function (a, b) {