Injectable Marinade

When exploring injectable marinade, it's essential to consider various aspects and implications. angular - What does @Injectable mean? Injectable () in the service specifies that this service can be injected/used in other components. In short if service has injectable decorator, other components can use that service by creating reference of service class in the constructor. Why do we use @Injectable () decorator , when we can actually inject .... This perspective suggests that, the @Injectable () decorator has the providedIn metadata option, where you can specify the provider of the decorated service class with the root injector, or with the injector for a specific NgModule.

To utilize a class with DI it must have a provider, and the @Injectable () decorator is one way of registering a provider. What is the difference between @Inject and @Injectable in Angular 2 .... node.js - What is Injectable in NestJS?

import { Injectable } from '@nestjs/common'; const userMock = [{ account: 'dung', password: '12345678' }]; @Injectable() export class UserService { getUser() { return userMock } } I not really understand @Injectable in NestJS. Some tutorial tell @Injectable tell the @Controller know it's an install and can use it as a Dependency Injection. But when I remove it, it's still working. angular - Component as Injectable?

Another key aspect involves, a component is injectable by default @Component() (or @Directive()) includes @Injectable(). Don't expect to get a specific instance of a component injected. This works for example with constructor(@Host() private parentComponent) where DI lookup is limited to parent injectors up to the injector of the host element. Normally for your use case DynamicComponentLoader is used which only accepts ...

ngOnInit not being called when Injectable class is Instantiated. 70 I don't know about all the lifecycle hooks, but as for destruction, ngOnDestroy actually get called on Injectable when it's provider is destroyed (for example an Injectable supplied by a component). From the docs : Lifecycle hook that is called when a directive, pipe or service is destroyed. dependency injection - How can I make an Angular service injectable ....

I am trying to create a service in Angular that should only be injectable within a specific module, not accessible outside that module. In this context, i have a service MyService that I want to restrict so it can ... Angular 19 - Why is a new @Injectable service created each time. The service is marked as @injectable. I then injected the service into a route guard component.

Similarly, the route guard gets an authentication service object from inject (). I expected Angular to inject the service as a singleton. Additionally, in my case, however, the service is always a new object.

typescript - What is the purpose of providedIn with the Injectable .... Injectable is provided - an instance of the Injectable will be given to classes below this specific injector level, whenever they request it.