fix(Subject): allow optional next value in type definition

closes #1728
ReactiveX · Jun 20, 2016 · 3e0c6d9 · 3e0c6d9
1 parent 97d43fe
commit 3e0c6d9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/Subject.ts b/src/Subject.ts
@@ -49,7 +49,7 @@ export class Subject<T> extends Observable<T> implements ISubscription {
     return <any>subject;
   }
 
-  next(value: T) {
+  next(value?: T) {
     if (this.isUnsubscribed) {
       throw new ObjectUnsubscribedError();
     }