diff --git a/packages/core/src/render3/util/styling_utils.ts b/packages/core/src/render3/util/styling_utils.ts
index bc35b63967..6239eda7bd 100644
--- a/packages/core/src/render3/util/styling_utils.ts
+++ b/packages/core/src/render3/util/styling_utils.ts
@@ -171,9 +171,8 @@ export function getPropValuesStartPosition(
 }
 
 export function hasValueChanged(
-    a: NO_CHANGE | StylingMapArray | number | String | string | null | boolean | undefined | {},
-    b: NO_CHANGE | StylingMapArray | number | String | string | null | boolean | undefined |
-        {}): boolean {
+    a: NO_CHANGE | StylingMapArray | number | string | null | boolean | undefined | {},
+    b: NO_CHANGE | StylingMapArray | number | string | null | boolean | undefined | {}): boolean {
   if (b === NO_CHANGE) return false;
 
   const compareValueA = Array.isArray(a) ? a[StylingMapArrayIndex.RawValuePosition] : a;
diff --git a/packages/service-worker/worker/test/data_spec.ts b/packages/service-worker/worker/test/data_spec.ts
index d07e91321b..c57add0204 100644
--- a/packages/service-worker/worker/test/data_spec.ts
+++ b/packages/service-worker/worker/test/data_spec.ts
@@ -299,7 +299,7 @@ function makeRequest(scope: SwTestHarness, url: string, clientId?: string): Prom
 }
 
 function makeNoCorsRequest(
-    scope: SwTestHarness, url: string, clientId?: string): Promise<String|null> {
+    scope: SwTestHarness, url: string, clientId?: string): Promise<string|null> {
   const req = new MockRequest(url, {mode: 'no-cors'});
   const [resTextPromise, done] = makePendingRequest(scope, req, clientId);
   return done.then(() => resTextPromise);