feat(utils): add utils library with a fake ramdon generator

apps/rxjs-pipe-bug/project.json

@@ -20,7 +20,8 @@
           "apps/rxjs-pipe-bug/src/assets"
         ],
         "styles": ["apps/rxjs-pipe-bug/src/styles.scss"],
-        "scripts": []
+        "scripts": [],
+        "allowedCommonJsDependencies": ["seedrandom"]
       },
       "configurations": {
         "production": {

apps/rxjs-pipe-bug/src/app/localDB.service.ts

@@ -1,6 +1,6 @@
 /* eslint-disable @typescript-eslint/member-ordering */
+import { randomError } from '@angular-challenges/shared/utils';
 import { Injectable } from '@angular/core';
-import { randNumber } from '@ngneat/falso';
 import { ComponentStore } from '@ngrx/component-store';
 import { of } from 'rxjs';
 
@@ -47,12 +47,12 @@ export class LocalDBService extends ComponentStore<DBState> {
     })
   );
 
-  deleteOneTopic = (id: number) => {
-    const randomNumber = randNumber({ min: 0.1, max: 1, fraction: 2 });
-    if (randomNumber > 0.5) {
-      this.deleteOne(id);
-      return of(true);
-    }
-    return of(false);
-  };
+  deleteOneTopic = (id: number) =>
+    randomError({
+      success: () => {
+        this.deleteOne(id);
+        return of(true);
+      },
+      error: () => of(false),
+    });
 }