From 956efaaad39e0ae232cabeefe863516cf06c2694 Mon Sep 17 00:00:00 2001
From: Edouard Bozon <bozonedouard@gmail.com>
Date: Thu, 2 Nov 2023 09:32:28 +0100
Subject: [PATCH] refactor: improve typing

---
 projects/todo-mvc/src/app/todo.service.ts | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/projects/todo-mvc/src/app/todo.service.ts b/projects/todo-mvc/src/app/todo.service.ts
index 2fbb539..c292204 100644
--- a/projects/todo-mvc/src/app/todo.service.ts
+++ b/projects/todo-mvc/src/app/todo.service.ts
@@ -1,5 +1,5 @@
 import { inject, Injectable } from '@angular/core';
-import { forkJoin, merge, Observable } from 'rxjs';
+import { forkJoin, merge, MonoTypeOperatorFunction } from 'rxjs';
 import { exhaustMap, map, withLatestFrom } from 'rxjs/operators';
 import { rxState } from '@rx-angular/state';
 import { rxActions } from '@rx-angular/state/actions';
@@ -27,11 +27,13 @@ export interface Actions {
   setFilter: TodoFilter;
 }
 
-const completedTodos = (source: Observable<Todo[]>): Observable<Todo[]> =>
-  source.pipe(map((todos) => todos.filter((todo) => todo.done)));
+const completedTodos: MonoTypeOperatorFunction<Todo[]> = (source) => {
+  return source.pipe(map((todos) => todos.filter((todo) => todo.done)));
+}
 
-const activeTodos = (source: Observable<Todo[]>): Observable<Todo[]> =>
-  source.pipe(map((todos) => todos.filter((todo) => !todo.done)));
+const activeTodos: MonoTypeOperatorFunction<Todo[]> = (source) => {
+  return source.pipe(map((todos) => todos.filter((todo) => !todo.done)));
+}
 
 @Injectable()
 export class TodoService {