From c35a120a738fdefa9157924a6f8d7a5990a61edc Mon Sep 17 00:00:00 2001
From: Ben Lesh <blesh@netflix.com>
Date: Tue, 13 Oct 2015 16:34:17 -0700
Subject: [PATCH] perf(count): fast-path for counting over scalars

---
 src/observables/ScalarObservable.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/observables/ScalarObservable.ts b/src/observables/ScalarObservable.ts
index b591af8f46..09dde2d982 100644
--- a/src/observables/ScalarObservable.ts
+++ b/src/observables/ScalarObservable.ts
@@ -89,4 +89,8 @@ export default class ScalarObservable<T> extends Observable<T> {
   scan<R>(project: (acc: R, x: T) => R, acc?: R): Observable<R> {
     return this.reduce(project, acc);
   }
+
+  count(): Observable<number> {
+    return new ScalarObservable(1);
+  }
 }