Don't crack! I'd like to talk a little bit of Angular here rather than backend and those jargons :)

As you might know, Angular bind elements to component variables in order to update values. There is concept for data binding which is called Banana in a box and its form is like [()] (a banana in a box). This is a two-way binding mechanism. But why it is like that. Why a banana in a box? :)

In Angular to bind properties to your component variables use [] like below:

<img [src]="my_source_image" />

On the contrary in order to bind an event to an element you would use () as below:

<button (click)="doSomething()">

In two-way binding you do as below in reality:

<input [ngModel]="ctrl.name" (ngModelChange)="ctrl.name=$event">

NOTE: you bind name to ngModel and on model change you set event value on form control name: ctrl.name=$event.

This is why Angular uses `[()]. It binds both properties and events in one go like a magic.


#angular #bind #event_binding #two_way_binding #banana_in_a_box

https://www.youtube.com/watch?t=1890&v=IR1NLfaq7PU&feature=youtu.be

#kafka #event_driven #microservice

https://www.eventstore.com/eventstoredb

#database #grpc #event #event_store