feat(challenge16): di

apps/di/src/app/currency.pipe.ts

@@ -0,0 +1,17 @@
+import { inject, Pipe, PipeTransform } from '@angular/core';
+import { map } from 'rxjs';
+import { CurrencyService } from './currency.service';
+
+@Pipe({
+  name: 'currency',
+  standalone: true,
+})
+export class CurrencyPipe implements PipeTransform {
+  currencyService = inject(CurrencyService);
+
+  transform(price: number) {
+    return this.currencyService.symbol$.pipe(
+      map((s) => `${String(price)}${s}`)
+    );
+  }
+}