NgRx Router Store | Reduce & Select Route Params

RxJS | Create Observables from event sources directly

Working in angular, we use RxJs we subscribe to Observable(s) to listen/ process event streams Ex (ActvatedRoute.params , HttpClient) etc…

HTTP-304 Conditional Cache Control using Spring MVC

Increasing Performance with HTTP Cache Headers…

Inject loggers in Spring | Java or Kotlin

static Logger LOGGER = LoggerFactory.getLogger(PastedWrong.class);

~Stop static initialization of your loggers~. Inject them

1. Prevent copy-paste errors, class can be determined from injection point

Improve Angular’s *ngFor performance and usability with trackBy

Prevent loss of focus and reconstruction of elements in your *ngFor on collection change with trackBy

Testing Angular Directives with Real / Test Components

Angular Directives are an important construct in angular to make DOM manipulation and / or event handling abstract.

We should Unit Test directives by mocking all dependencies with jasmine mocks and spies.

Angular | Scrolls on router-outlets

Angular Single Page Applications (SPAs) handle routes with router-outlets, keeping the browser window on the same page (index.html), enriching experience after initial page load with just post-back / ajax calls

Create Generic Angular Pipes | pure & impure

Fulfill your pipe dream in templates

1. Keep one-off (non-reusable) transform impure functions in components, pass them as value-argument to be applied
2. Define your re-usable pure…

Ngrx http$ Effects should listen for CANCEL action

In a Ngrx implementation, a Store Effect loads an entity from from REST APIs when it receives a FETCH_ENTITY action and then dispatch a…