refactor(core): correct all typeof ngDevMode comparison patterns introduced by angular#63875

Anuj-Chhajed · alxhub · commit 96b79fc39385 · 2025-12-08T10:30:01.000-08:00
This change replaces all remaining occurrences of `typeof ngDevMode !== undefined`
with the correct `typeof ngDevMode !== 'undefined'` form. This aligns the codebase
with JavaScript typeof semantics and maintains consistency with other Angular code.
diff --git a/packages/common/http/src/interceptor.ts b/packages/common/http/src/interceptor.ts
@@ -192,29 +192,29 @@ export function chainedInterceptorFn(
  * @publicApi
  */
 export const HTTP_INTERCEPTORS = new InjectionToken<readonly HttpInterceptor[]>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'HTTP_INTERCEPTORS' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'HTTP_INTERCEPTORS' : '',
 );
 
 /**
  * A multi-provided token of `HttpInterceptorFn`s.
  */
 export const HTTP_INTERCEPTOR_FNS = new InjectionToken<readonly HttpInterceptorFn[]>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'HTTP_INTERCEPTOR_FNS' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'HTTP_INTERCEPTOR_FNS' : '',
   {factory: () => []},
 );
 
 /**
  * A multi-provided token of `HttpInterceptorFn`s that are only set in root.
  */
 export const HTTP_ROOT_INTERCEPTOR_FNS = new InjectionToken<readonly HttpInterceptorFn[]>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'HTTP_ROOT_INTERCEPTOR_FNS' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'HTTP_ROOT_INTERCEPTOR_FNS' : '',
 );
 
 // TODO(atscott): We need a larger discussion about stability and what should contribute to stability.
 // Should the whole interceptor chain contribute to stability or just the backend request #55075?
 // Should HttpClient contribute to stability automatically at all?
 export const REQUESTS_CONTRIBUTE_TO_STABILITY = new InjectionToken<boolean>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'REQUESTS_CONTRIBUTE_TO_STABILITY' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'REQUESTS_CONTRIBUTE_TO_STABILITY' : '',
   {providedIn: 'root', factory: () => true},
 );
 
diff --git a/packages/common/http/src/provider.ts b/packages/common/http/src/provider.ts
@@ -156,7 +156,7 @@ export function withInterceptors(
 }
 
 const LEGACY_INTERCEPTOR_FN = new InjectionToken<HttpInterceptorFn>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'LEGACY_INTERCEPTOR_FN' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'LEGACY_INTERCEPTOR_FN' : '',
 );
 
 /**
diff --git a/packages/common/http/src/transfer_cache.ts b/packages/common/http/src/transfer_cache.ts
@@ -81,7 +81,7 @@ export type HttpTransferCacheOptions = {
  * @publicApi
  */
 export const HTTP_TRANSFER_CACHE_ORIGIN_MAP = new InjectionToken<Record<string, string>>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'HTTP_TRANSFER_CACHE_ORIGIN_MAP' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'HTTP_TRANSFER_CACHE_ORIGIN_MAP' : '',
 );
 
 /**
@@ -115,7 +115,7 @@ interface CacheOptions extends HttpTransferCacheOptions {
 }
 
 const CACHE_OPTIONS = new InjectionToken<CacheOptions>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'HTTP_TRANSFER_STATE_CACHE_OPTIONS' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'HTTP_TRANSFER_STATE_CACHE_OPTIONS' : '',
 );
 
 /**
diff --git a/packages/common/http/src/xsrf.ts b/packages/common/http/src/xsrf.ts
@@ -22,15 +22,15 @@ import {HttpRequest} from './request';
 import {HttpEvent} from './response';
 
 export const XSRF_ENABLED = new InjectionToken<boolean>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'XSRF_ENABLED' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'XSRF_ENABLED' : '',
   {
     factory: () => true,
   },
 );
 
 export const XSRF_DEFAULT_COOKIE_NAME = 'XSRF-TOKEN';
 export const XSRF_COOKIE_NAME = new InjectionToken<string>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'XSRF_COOKIE_NAME' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'XSRF_COOKIE_NAME' : '',
   {
     providedIn: 'root',
     factory: () => XSRF_DEFAULT_COOKIE_NAME,
@@ -39,7 +39,7 @@ export const XSRF_COOKIE_NAME = new InjectionToken<string>(
 
 export const XSRF_DEFAULT_HEADER_NAME = 'X-XSRF-TOKEN';
 export const XSRF_HEADER_NAME = new InjectionToken<string>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'XSRF_HEADER_NAME' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'XSRF_HEADER_NAME' : '',
   {
     providedIn: 'root',
     factory: () => XSRF_DEFAULT_HEADER_NAME,
diff --git a/packages/common/src/directives/ng_optimized_image/image_loaders/image_loader.ts b/packages/common/src/directives/ng_optimized_image/image_loaders/image_loader.ts
@@ -71,7 +71,7 @@ export type ImageLoaderInfo = {
  * @publicApi
  */
 export const IMAGE_LOADER = new InjectionToken<ImageLoader>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'ImageLoader' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'ImageLoader' : '',
   {
     factory: () => noopImageLoader,
   },
diff --git a/packages/common/src/directives/ng_optimized_image/preconnect_link_checker.ts b/packages/common/src/directives/ng_optimized_image/preconnect_link_checker.ts
@@ -43,7 +43,7 @@ const INTERNAL_PRECONNECT_CHECK_BLOCKLIST = new Set(['localhost', '127.0.0.1', '
  * @publicApi
  */
 export const PRECONNECT_CHECK_BLOCKLIST = new InjectionToken<Array<string | string[]>>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'PRECONNECT_CHECK_BLOCKLIST' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'PRECONNECT_CHECK_BLOCKLIST' : '',
 );
 
 /**
diff --git a/packages/common/src/location/location_strategy.ts b/packages/common/src/location/location_strategy.ts
@@ -76,7 +76,7 @@ export abstract class LocationStrategy {
  * @publicApi
  */
 export const APP_BASE_HREF = new InjectionToken<string>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'appBaseHref' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'appBaseHref' : '',
 );
 
 /**
diff --git a/packages/common/src/location/platform_location.ts b/packages/common/src/location/platform_location.ts
@@ -73,7 +73,7 @@ export abstract class PlatformLocation {
  * @publicApi
  */
 export const LOCATION_INITIALIZED = new InjectionToken<Promise<any>>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'Location Initialized' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'Location Initialized' : '',
 );
 
 /**
diff --git a/packages/common/src/pipes/date_pipe.ts b/packages/common/src/pipes/date_pipe.ts
@@ -20,7 +20,7 @@ import {invalidPipeArgumentError} from './invalid_pipe_argument_error';
  * @deprecated use DATE_PIPE_DEFAULT_OPTIONS token to configure DatePipe
  */
 export const DATE_PIPE_DEFAULT_TIMEZONE = new InjectionToken<string>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'DATE_PIPE_DEFAULT_TIMEZONE' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'DATE_PIPE_DEFAULT_TIMEZONE' : '',
 );
 
 /**
@@ -55,7 +55,7 @@ export const DATE_PIPE_DEFAULT_TIMEZONE = new InjectionToken<string>(
  * ```
  */
 export const DATE_PIPE_DEFAULT_OPTIONS = new InjectionToken<DatePipeConfig>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'DATE_PIPE_DEFAULT_OPTIONS' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'DATE_PIPE_DEFAULT_OPTIONS' : '',
 );
 
 /**
diff --git a/packages/common/upgrade/src/location_upgrade_module.ts b/packages/common/upgrade/src/location_upgrade_module.ts
@@ -56,11 +56,11 @@ export interface LocationUpgradeConfig {
  * @publicApi
  */
 export const LOCATION_UPGRADE_CONFIGURATION = new InjectionToken<LocationUpgradeConfig>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'LOCATION_UPGRADE_CONFIGURATION' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'LOCATION_UPGRADE_CONFIGURATION' : '',
 );
 
 const APP_BASE_HREF_RESOLVED = new InjectionToken<string>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'APP_BASE_HREF_RESOLVED' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'APP_BASE_HREF_RESOLVED' : '',
 );
 
 /**
diff --git a/packages/core/src/application/application_tokens.ts b/packages/core/src/application/application_tokens.ts
@@ -42,7 +42,7 @@ import {RuntimeError, RuntimeErrorCode} from '../errors';
  * @publicApi
  */
 export const APP_ID = new InjectionToken<string>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'AppId' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'AppId' : '',
   {
     factory: () => DEFAULT_APP_ID,
   },
@@ -79,15 +79,15 @@ export const validAppIdInitializer: StaticProvider = {
  * @publicApi
  */
 export const PLATFORM_INITIALIZER = new InjectionToken<ReadonlyArray<() => void>>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'Platform Initializer' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'Platform Initializer' : '',
 );
 
 /**
  * A token that indicates an opaque platform ID.
  * @publicApi
  */
 export const PLATFORM_ID = new InjectionToken<Object>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'Platform ID' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'Platform ID' : '',
   {
     providedIn: 'platform',
     factory: () => 'unknown', // set a default platform name, when none set explicitly
@@ -104,7 +104,7 @@ export const PLATFORM_ID = new InjectionToken<Object>(
  * @publicApi
  */
 export const ANIMATION_MODULE_TYPE = new InjectionToken<'NoopAnimations' | 'BrowserAnimations'>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'AnimationModuleType' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'AnimationModuleType' : '',
 );
 
 // TODO(crisbeto): link to CSP guide here.
@@ -118,7 +118,7 @@ export const ANIMATION_MODULE_TYPE = new InjectionToken<'NoopAnimations' | 'Brow
  * @publicApi
  */
 export const CSP_NONCE = new InjectionToken<string | null>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'CSP nonce' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'CSP nonce' : '',
   {
     factory: () => {
       // Ideally we wouldn't have to use `querySelector` here since we know that the nonce will be on
@@ -184,7 +184,7 @@ export const IMAGE_CONFIG_DEFAULTS: ImageConfig = {
  * @publicApi
  */
 export const IMAGE_CONFIG = new InjectionToken<ImageConfig>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'ImageConfig' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'ImageConfig' : '',
   {
     factory: () => IMAGE_CONFIG_DEFAULTS,
   },
diff --git a/packages/core/src/application/tracing.ts b/packages/core/src/application/tracing.ts
@@ -26,7 +26,7 @@ export interface TracingSnapshot {
  * Injection token for a `TracingService`, optionally provided.
  */
 export const TracingService = new InjectionToken<TracingService<TracingSnapshot>>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'TracingService' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'TracingService' : '',
 );
 
 /**
diff --git a/packages/core/src/change_detection/use_exhaustive_check_no_changes.ts b/packages/core/src/change_detection/use_exhaustive_check_no_changes.ts
@@ -11,5 +11,5 @@ import {InjectionToken} from '../di';
 export const USE_EXHAUSTIVE_CHECK_NO_CHANGES_DEFAULT = false;
 
 export const UseExhaustiveCheckNoChanges = new InjectionToken<boolean>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'exhaustive checkNoChanges' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'exhaustive checkNoChanges' : '',
 );
diff --git a/packages/core/src/defer/registry.ts b/packages/core/src/defer/registry.ts
@@ -22,7 +22,7 @@ import type {PromiseWithResolvers} from '../util/promise_with_resolvers';
  * in a tree-shakable way.
  */
 export const DEHYDRATED_BLOCK_REGISTRY = new InjectionToken<DehydratedBlockRegistry>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'DEHYDRATED_BLOCK_REGISTRY' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'DEHYDRATED_BLOCK_REGISTRY' : '',
 );
 
 /**
diff --git a/packages/core/src/defer/rendering.ts b/packages/core/src/defer/rendering.ts
@@ -72,7 +72,7 @@ export const DEFER_BLOCK_DEPENDENCY_INTERCEPTOR =
  * **INTERNAL**, token used for configuring defer block behavior.
  */
 export const DEFER_BLOCK_CONFIG = new InjectionToken<DeferBlockConfig>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'DEFER_BLOCK_CONFIG' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'DEFER_BLOCK_CONFIG' : '',
 );
 
 /**
diff --git a/packages/core/src/di/host_tag_name_token.ts b/packages/core/src/di/host_tag_name_token.ts
@@ -44,7 +44,7 @@ export const HOST_TAG_NAME: InjectionToken<string> = /* @__PURE__ */ (() => {
   // the top level instead, the mutation would look like a side effect,
   // forcing the bundler to keep it even when unused.
   const HOST_TAG_NAME_TOKEN = new InjectionToken<string>(
-    typeof ngDevMode !== undefined && ngDevMode ? 'HOST_TAG_NAME' : '',
+    typeof ngDevMode !== 'undefined' && ngDevMode ? 'HOST_TAG_NAME' : '',
   );
 
   // HOST_TAG_NAME should be resolved at the current node, similar to e.g. ElementRef,
diff --git a/packages/core/src/di/initializer_token.ts b/packages/core/src/di/initializer_token.ts
@@ -22,5 +22,5 @@ import {InjectionToken} from './injection_token';
  * @publicApi
  */
 export const ENVIRONMENT_INITIALIZER = new InjectionToken<ReadonlyArray<() => void>>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'ENVIRONMENT_INITIALIZER' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'ENVIRONMENT_INITIALIZER' : '',
 );
diff --git a/packages/core/src/di/injector_token.ts b/packages/core/src/di/injector_token.ts
@@ -19,7 +19,7 @@ import {InjectorMarkers} from './injector_marker';
  * @publicApi
  */
 export const INJECTOR = new InjectionToken<Injector>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'INJECTOR' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'INJECTOR' : '',
   // Disable tslint because this is const enum which gets inlined not top level prop access.
   // tslint:disable-next-line: no-toplevel-property-access
   InjectorMarkers.Injector as any, // Special value used by Ivy to identify `Injector`.
diff --git a/packages/core/src/di/internal_tokens.ts b/packages/core/src/di/internal_tokens.ts
@@ -11,5 +11,5 @@ import {Type} from '../interface/type';
 import {InjectionToken} from './injection_token';
 
 export const INJECTOR_DEF_TYPES = new InjectionToken<ReadonlyArray<Type<unknown>>>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'INJECTOR_DEF_TYPES' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'INJECTOR_DEF_TYPES' : '',
 );
diff --git a/packages/core/src/di/scope.ts b/packages/core/src/di/scope.ts
@@ -16,5 +16,5 @@ export type InjectorScope = 'root' | 'platform' | 'environment';
  * they are provided in the root scope.
  */
 export const INJECTOR_SCOPE = new InjectionToken<InjectorScope | null>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'Set Injector scope.' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'Set Injector scope.' : '',
 );
diff --git a/packages/core/src/document.ts b/packages/core/src/document.ts
@@ -18,5 +18,5 @@ import {InjectionToken} from './di';
  * @publicApi
  */
 export const DOCUMENT = new InjectionToken<Document>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'DocumentToken' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'DocumentToken' : '',
 );
diff --git a/packages/core/src/error_handler.ts b/packages/core/src/error_handler.ts
@@ -106,7 +106,7 @@ export const errorHandlerEnvironmentInitializer = {
 };
 
 const globalErrorListeners = new InjectionToken<void>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'GlobalErrorListeners' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'GlobalErrorListeners' : '',
   {
     factory: () => {
       if (typeof ngServerMode !== 'undefined' && ngServerMode) {
diff --git a/packages/core/src/event_delegation_utils.ts b/packages/core/src/event_delegation_utils.ts
@@ -95,7 +95,7 @@ export interface EventContractDetails {
 }
 
 export const JSACTION_EVENT_CONTRACT = new InjectionToken<EventContractDetails>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'EVENT_CONTRACT_DETAILS' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'EVENT_CONTRACT_DETAILS' : '',
   {
     factory: () => ({}),
   },
diff --git a/packages/core/src/hydration/tokens.ts b/packages/core/src/hydration/tokens.ts
@@ -61,7 +61,7 @@ export const IS_INCREMENTAL_HYDRATION_ENABLED = new InjectionToken<boolean>(
  * A map of DOM elements with `jsaction` attributes grouped by action names.
  */
 export const JSACTION_BLOCK_ELEMENT_MAP = new InjectionToken<Map<string, Set<Element>>>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'JSACTION_BLOCK_ELEMENT_MAP' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'JSACTION_BLOCK_ELEMENT_MAP' : '',
   {
     factory: () => new Map<string, Set<Element>>(),
   },
diff --git a/packages/core/src/i18n/tokens.ts b/packages/core/src/i18n/tokens.ts
@@ -79,7 +79,7 @@ export function getGlobalLocale(): string {
  * @publicApi
  */
 export const LOCALE_ID: InjectionToken<string> = new InjectionToken(
-  typeof ngDevMode !== undefined && ngDevMode ? 'LocaleId' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'LocaleId' : '',
   {
     factory: () => inject(LOCALE_ID, {optional: true, skipSelf: true}) || getGlobalLocale(),
   },
@@ -129,7 +129,7 @@ export const LOCALE_ID: InjectionToken<string> = new InjectionToken(
  * @publicApi
  */
 export const DEFAULT_CURRENCY_CODE = new InjectionToken<string>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'DefaultCurrencyCode' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'DefaultCurrencyCode' : '',
   {
     factory: () => USD_CURRENCY_CODE,
   },
@@ -169,7 +169,7 @@ export const DEFAULT_CURRENCY_CODE = new InjectionToken<string>(
  * @publicApi
  */
 export const TRANSLATIONS = new InjectionToken<string>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'Translations' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'Translations' : '',
 );
 
 /**
@@ -203,7 +203,7 @@ export const TRANSLATIONS = new InjectionToken<string>(
  * @publicApi
  */
 export const TRANSLATIONS_FORMAT = new InjectionToken<string>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'TranslationsFormat' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'TranslationsFormat' : '',
 );
 
 /**
diff --git a/packages/core/src/linker/compiler.ts b/packages/core/src/linker/compiler.ts
@@ -126,7 +126,7 @@ export type CompilerOptions = {
  * @publicApi
  */
 export const COMPILER_OPTIONS = new InjectionToken<CompilerOptions[]>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'compilerOptions' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'compilerOptions' : '',
 );
 
 /**
diff --git a/packages/core/src/platform/bootstrap.ts b/packages/core/src/platform/bootstrap.ts
@@ -49,7 +49,7 @@ import {PendingTasksInternal} from '../pending_tasks_internal';
  * from component rendering.
  */
 export const ENABLE_ROOT_COMPONENT_BOOTSTRAP = new InjectionToken<boolean>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'ENABLE_ROOT_COMPONENT_BOOTSTRAP' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'ENABLE_ROOT_COMPONENT_BOOTSTRAP' : '',
 );
 
 export interface BootstrapConfig {
diff --git a/packages/core/src/platform/platform_destroy_listeners.ts b/packages/core/src/platform/platform_destroy_listeners.ts
@@ -15,5 +15,5 @@ import {InjectionToken} from '../di';
  * entire class tree-shakeable.
  */
 export const PLATFORM_DESTROY_LISTENERS = new InjectionToken<Set<VoidFunction>>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'PlatformDestroyListeners' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'PlatformDestroyListeners' : '',
 );
diff --git a/packages/forms/signals/src/api/field_directive.ts b/packages/forms/signals/src/api/field_directive.ts
@@ -33,7 +33,7 @@ import type {FieldTree} from './types';
  * @experimental 21.0.0
  */
 export const FIELD = new InjectionToken<Field<unknown>>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'FIELD' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'FIELD' : '',
 );
 
 /**
diff --git a/packages/forms/src/directives/control_value_accessor.ts b/packages/forms/src/directives/control_value_accessor.ts
@@ -212,5 +212,5 @@ export class BuiltInControlValueAccessor extends BaseControlValueAccessor {}
  * @publicApi
  */
 export const NG_VALUE_ACCESSOR = new InjectionToken<ReadonlyArray<ControlValueAccessor>>(
-  typeof ngDevMode !== undefined && ngDevMode ? 'NgValueAccessor' : '',
+  typeof ngDevMode !== 'undefined' && ngDevMode ? 'NgValueAccessor' : '',
 );
diff --git a/packages/forms/src/directives/default_value_accessor.ts b/packages/forms/src/directives/default_value_accessor.ts
diff --git a/packages/forms/src/directives/reactive_directives/form_control_directive.ts b/packages/forms/src/directives/reactive_directives/form_control_directive.ts
diff --git a/packages/forms/src/validators.ts b/packages/forms/src/validators.ts
diff --git a/packages/platform-browser/animations/async/src/async_animation_renderer.ts b/packages/platform-browser/animations/async/src/async_animation_renderer.ts
diff --git a/packages/platform-browser/src/dom/dom_renderer.ts b/packages/platform-browser/src/dom/dom_renderer.ts
diff --git a/packages/platform-browser/src/dom/events/event_manager.ts b/packages/platform-browser/src/dom/events/event_manager.ts
diff --git a/packages/router/src/directives/router_outlet.ts b/packages/router/src/directives/router_outlet.ts
diff --git a/packages/router/src/router_config_loader.ts b/packages/router/src/router_config_loader.ts
diff --git a/packages/router/src/utils/view_transition.ts b/packages/router/src/utils/view_transition.ts
diff --git a/packages/service-worker/src/provider.ts b/packages/service-worker/src/provider.ts

Original file line number	Diff line number	Diff line change
`@@ -156,7 +156,7 @@ export function withInterceptors(`
`156`	`156`	`}`
`157`	`157`
`158`	`158`	`const LEGACY_INTERCEPTOR_FN = new InjectionToken<HttpInterceptorFn>(`
`159`		`- typeof ngDevMode !== undefined && ngDevMode ? 'LEGACY_INTERCEPTOR_FN' : '',`
	`159`	`+ typeof ngDevMode !== 'undefined' && ngDevMode ? 'LEGACY_INTERCEPTOR_FN' : '',`
`160`	`160`	`);`
`161`	`161`
`162`	`162`	`/**`
Original file line number	Diff line number	Diff line change
`@@ -71,7 +71,7 @@ export type ImageLoaderInfo = {`
`71`	`71`	`* @publicApi`
`72`	`72`	`*/`
`73`	`73`	`export const IMAGE_LOADER = new InjectionToken<ImageLoader>(`
`74`		`- typeof ngDevMode !== undefined && ngDevMode ? 'ImageLoader' : '',`
	`74`	`+ typeof ngDevMode !== 'undefined' && ngDevMode ? 'ImageLoader' : '',`
`75`	`75`	`{`
`76`	`76`	`factory: () => noopImageLoader,`
`77`	`77`	`},`