Angular: Fix Angular sandbox startup errors

code/addons/actions/src/runtime/action.ts

@@ -21,10 +21,9 @@ const isReactSyntheticEvent = (e: unknown): e is SyntheticEvent =>
       findProto(e, (proto) => /^Synthetic(?:Base)?Event$/.test(proto.constructor.name)) &&
       typeof (e as SyntheticEvent).persist === 'function'
   );
-const serializeArg = <T>(a: T) => {
+const serializeArg = <T extends object>(a: T) => {
   if (isReactSyntheticEvent(a)) {
     const e: SyntheticEvent = Object.create(
-      // @ts-expect-error (Converted from ts-ignore)
       a.constructor.prototype,
       Object.getOwnPropertyDescriptors(a)
     );

code/addons/links/src/utils.ts

@@ -37,9 +37,7 @@ export const hrefTo = (title: ComponentTitle, name: StoryName): Promise<string>
   return new Promise((resolve) => {
     const { location } = document;
     const query = parseQuery(location.search);
-    // @ts-expect-error (Converted from ts-ignore)
-    const existingId = [].concat(query.id)[0];
-    // @ts-expect-error (Converted from ts-ignore)
+    const existingId = query.id;
     const titleToLink = title || existingId.split('--', 2)[0];
     const id = toId(titleToLink, name);
     const path = `/story/${id}`;

code/lib/core-common/src/js-package-manager/JsPackageManager.ts

@@ -17,6 +17,8 @@ const logger = console;
 
 export type PackageManagerName = 'npm' | 'yarn1' | 'yarn2' | 'pnpm';
 
+type StorybookPackage = keyof typeof storybookPackagesVersions;
+
 /**
  * Extract package name and version from input
  *
@@ -381,9 +383,8 @@ export abstract class JsPackageManager {
   public async getVersion(packageName: string, constraint?: string): Promise<string> {
     let current: string | undefined;
 
-    if (/(@storybook|^sb$|^storybook$)/.test(packageName)) {
-      // @ts-expect-error (Converted from ts-ignore)
-      current = storybookPackagesVersions[packageName];
+    if (packageName in storybookPackagesVersions) {
+      current = storybookPackagesVersions[packageName as StorybookPackage];
     }
 
     let latest;

code/lib/preview-api/src/modules/preview-web/Preview.tsx

@@ -100,9 +100,7 @@ export class Preview<TRenderer extends Renderer> {
         get: (_, method) => {
           if (this.storyStoreValue) {
             deprecate('Accessing the Story Store is deprecated and will be removed in 9.0');
-
-            // @ts-expect-error I'm not sure if there's a way to keep TS happy here
-            return this.storyStoreValue[method];
+            return this.storyStoreValue[method as keyof StoryStore<TRenderer>];
           }
 
           throw new StoryStoreAccessedBeforeInitializationError();

code/lib/test/src/index.ts

@@ -36,6 +36,6 @@ const resetAllMocksLoader: LoaderFunction = ({ parameters }) => {
   }
 };
 
-// @ts-expect-error We are using this as a default Storybook loader, when the test package is used. This avoids the need for optional peer dependency workarounds.
+// We are using this as a default Storybook loader, when the test package is used. This avoids the need for optional peer dependency workarounds.
 // eslint-disable-next-line no-underscore-dangle
-global.__STORYBOOK_TEST_LOADERS__ = [resetAllMocksLoader];
+(global as any).__STORYBOOK_TEST_LOADERS__ = [resetAllMocksLoader];