While studying an Angular 7 class, I stumbled upon the following code that left me a bit confused. It's not exactly a search engine-friendly statement, so my apologies for that :)
@Component({
selector: 'app-some',
templateUrl: './some.component.html',
styleUrls: ['./some.component.scss'],
providers: [
SomeComponent
]
})
export class AnotherComponent implements OnInit, OnChanges {
_ = _; // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< here ...
// ...
}
If the variable `_` is declared globally in another file:
export var _ = "Hello world!";
You might consider assigning it to a property of the component class in order to access it in the template:
import { _ } from "./external.model";
export class AppComponent {
_ = _;
}
<div> {{ _ }} </div>
For a demonstration, check out this stackblitz.
It may not have a significant purpose, but in an Angular environment, you could potentially implement something like the example below.
@Component({
selector: 'app-some',
templateUrl: './some.component.html',
styleUrls: ['./some.component.scss'],
providers: [
SomeComponent
]
})
export class AnotherComponent implements OnInit, OnChanges {
constructor(public _: dataService){}
_ = _;
}
This snippet simply reassigns the component variable _ to the dataService (which is already assigned). However, I am unable to think of a practical use case for this at the moment.
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