Angular

Use Angular route-level lazy loading and deliberate preloading to reduce initial JavaScript without turning first navigation into an unobserved failure.

Use Angular built-in template control flow with deliberate list identity, empty states, aliases, and tests that catch incorrect DOM reuse.

Design Angular components with ng-content, multiple slots, fallback content, and content queries without hiding ownership or breaking accessibility.

Test Angular components through their rendered DOM with focused TestBed setup, realistic user interactions, controlled dependencies, and deterministic async assertions.

Use Angular @defer blocks with intentional triggers, stable placeholders, prefetching, error states, and measured bundle improvements.

Use Angular functional route guards for navigation flow while keeping real authorization on the server and handling asynchronous identity safely.

Use Angular OnPush change detection with immutable inputs, signals, observable bindings, and explicit boundaries that prevent stale UI surprises.

Build Angular forms with explicit value types, runtime validation, deliberate disabled-field behavior, and predictable submission and failure states.

Use modern Angular functional HTTP interceptors for authentication, correlation, logging, and consistent error policy without hiding feature behavior.

Use Angular route resolvers deliberately with typed route data, centralized navigation errors, cancellation-aware HTTP, and honest loading UX.