fix(fromEvent): Defines toString to fix Closure compilations (#3417)

ReactiveX · Mar 8, 2018 · 1558b43 · 1558b43
1 parent 616710a
commit 1558b43
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/internal/observable/fromEvent.ts b/src/internal/observable/fromEvent.ts
@@ -2,6 +2,8 @@ import { Observable } from '../Observable';
 import { isFunction } from '../util/isFunction';
 import { Subscriber } from '../Subscriber';
 
+const toString: Function = Object.prototype.toString;
+
 export type NodeStyleEventEmitter = {
   addListener: (eventName: string, handler: Function) => void;
   removeListener: (eventName: string, handler: Function) => void;