[Updated] packages to angular v8.

package.json

@@ -39,26 +39,20 @@
     "tslib": "^1.9.0"
   },
   "peerDependencies": {
-    "@angular/common": "^7.1.4",
-    "@angular/compiler": "^7.1.4",
-    "@angular/compiler-cli": "^7.1.4",
-    "@angular/core": "^7.1.4",
-    "@angular/platform-browser": "^7.1.4",
-    "@angular/platform-browser-dynamic": "^7.1.4",
     "reflect-metadata": ">=0.1.3"
   },
   "optionalDependencies": {
     "fsevents": "*"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^0.801.2",
-    "@angular/cli": "^8.3.21",
-    "@angular/common": "^7.1.4",
-    "@angular/compiler": "^7.1.4",
-    "@angular/compiler-cli": "^7.1.4",
-    "@angular/core": "^7.1.4",
-    "@angular/platform-browser": "^7.1.4",
-    "@angular/platform-browser-dynamic": "^7.1.4",
+    "@angular-devkit/build-angular": "^0.803.25",
+    "@angular/cli": "^8.3.25",
+    "@angular/common": "^8.2.14",
+    "@angular/compiler": "^8.2.14",
+    "@angular/compiler-cli": "^8.2.14",
+    "@angular/core": "^8.2.14",
+    "@angular/platform-browser": "^8.2.14",
+    "@angular/platform-browser-dynamic": "^8.2.14",
     "@types/date-fns": "^2.6.0",
     "@types/jasmine": "2.5.43",
     "@types/lodash-es": "^4.17.1",
@@ -84,12 +78,12 @@
     "ts-loader": "^6.0.0",
     "tslint": "^5.11.0",
     "tslint-config-airbnb": "^5.11.1",
-    "typescript": "3.1.6",
+    "typescript": "3.5.3",
     "webpack": "^4.28.3",
     "webpack-dev-middleware": "^3.4.0",
-    "zone.js": "^0.8.26"
+    "zone.js": "^0.9.1"
   },
   "engines": {
     "node": ">=0.8.0"
   }
-}
+}

src/services/json-api-datastore.service.ts

@@ -459,7 +459,11 @@ export class JsonApiDatastore {
     }
   }
 
-  protected resetMetadataAttributes<T extends JsonApiModel>(res: T, attributesMetadata: any, modelType: ModelType<T>) {
+  protected resetMetadataAttributes<T extends JsonApiModel>(
+    res: any,
+    attributesMetadata: any,
+    modelType: ModelType<T>,
+  ) {
     for (const propertyName in attributesMetadata) {
       if (attributesMetadata.hasOwnProperty(propertyName)) {
         const metadata: any = attributesMetadata[propertyName];