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I want to use the datePipe in my component. I followed the instructions here but I am met with
Error: StaticInjectorError[DatePipe]: StaticInjectorError[DatePipe]: NullInjectorError: No provider for DatePipe! Here is my code:
Component
import { DatePipe } from '@angular/common'; export class LivePreviewComponent implements OnInit{ currentDate = new Date(); constructor(private datePipe:DatePipe) {} ngOnInit() { this.datePipe.transform(this.currentDate, 'YYYY-MM-DDTHH:mm') } } 
741
You don't have to duplicate your code if you want to also use a pipe's functionality in a component class. All you have to do really is inject the pipe like a service, and then call its transform method.
If you want to call the pipe directly within the component class, you need to instantiate it and call its tranform method: @Component({ (...) })
You don’t have to duplicate your code if you want to also use a pipe’s functionality in a component class. All you have to do really is inject the pipe like a service, and then call its transform method. The following works for any Angular 2+ app. Say we have a custom CapitalizePipe that capitalizes every word that’s longer than 2 characters:
How To Use Angular Pipes in Components & Service ts files Import angular pipe in app.module.ts file and add it to the providers array. In Component file, import angular pipe & inject the pipe into the constructor. And Finally use the angular pipe transform method & pass the required parameters ...
To use date pipe in component & services follow the below steps. Import DatePipe from @angular\common in app.module.ts file; Add the DatePipe to provider array. Inject the DatePipe in component constructor file using dependency injection. And finally format the date values using date pipe transform method as shown below.
We can use the pipe transformation within a component in the following three main steps. 1. Register the pipe in the module First register the pipe you want to use as a provider in the main module file, in this case, it will be the app.module.ts file as highlighted in bold below.
Add to providers array in the component
@Component({ selector: 'app-root', templateUrl: '...', providers:[DatePipe] }) or inject it to module
@NgModule({ providers:[DatePipe] }) or write a separate class extending the DatePipe and use it as a service
@Injectable() export class CustomDatePipe extends DatePipe { transform(value, format) { return super.transform(value, format); } } and inject this to providers array
@Component({ selector: 'app-root', templateUrl: '...', providers:[CustomDatePipe] }) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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