From 08fb074d0fb6f02e89b6e34885bfc619c28de62c Mon Sep 17 00:00:00 2001
From: Ben Lesh <ben@benlesh.com>
Date: Wed, 24 Jan 2018 15:15:58 -0800
Subject: [PATCH] feat(EMPTY): observable constant EMPTY now exported

---
 spec/index-spec.ts               | 4 ++++
 src/index.ts                     | 3 +++
 src/internal/observable/empty.ts | 4 ++++
 3 files changed, 11 insertions(+)

diff --git a/spec/index-spec.ts b/spec/index-spec.ts
index b3f058b038..f1d2153452 100644
--- a/spec/index-spec.ts
+++ b/spec/index-spec.ts
@@ -32,4 +32,8 @@ describe('index', () => {
     expect(index.noop).to.exist;
     expect(index.identity).to.exist;
   });
+
+  it('should export constants', () => {
+    expect(index.EMPTY).to.exist;
+  });
 });
diff --git a/src/index.ts b/src/index.ts
index ffabc1e17d..f5abc3af28 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -23,5 +23,8 @@ export { pipe } from './internal/util/pipe';
 export { noop } from './internal/util/noop';
 export { identity } from './internal/util/identity';
 
+/* Constants */
+export { EMPTY } from './internal/observable/empty';
+
 /* Types */
 export * from './internal/types';
diff --git a/src/internal/observable/empty.ts b/src/internal/observable/empty.ts
index b3ace51c20..82e15cc4e2 100644
--- a/src/internal/observable/empty.ts
+++ b/src/internal/observable/empty.ts
@@ -1,6 +1,10 @@
 import { Observable } from '../Observable';
 import { IScheduler } from '../Scheduler';
 
+/**
+ * The same Observable instance returned by any call to {@link empty} without a
+ * {@link Scheduler}. It is preferrable to use this over `empty()`.
+ */
 export const EMPTY = new Observable<never>(subscriber => subscriber.complete());
 
 /**