Recommend to use angular-cli to generate component and service, so we can get testing templates. ng g s heros // generate a heros service Component with injected service: import { TestBed, async, inject } from '@angular/core/testing'; import { AppCom…
When you use ngrx/store and you want to fire a service request. When it sucessfully return the response, you need to dispatch action to tell the store update. So one pattern can be considered to follow is: import {Http, Headers} from '@angular/http';…
A @Directive is used to add behavior to elements and components in your application. This makes @Directives ideal for behaviors such as "tracking" which don't belong in a Component, but do belong as a behavior in your application. import {Direct…
You need to define a <template> to be able to use it elsewhere in your app as a TemplateRef. You can store these TemplateRefs in a Service and then access them from any @Directive or @Component in your app. We want to create a service and a componen…
