From 28e2f731f76673af55fa6a39b435a33ac7314c0c Mon Sep 17 00:00:00 2001
From: Max Lynch <max@drifty.com>
Date: Fri, 10 Jun 2016 14:00:35 -0500
Subject: [PATCH] fix(plugin) only call clearFunction if defined. Fixes #210

---
 src/plugins/plugin.ts | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/plugins/plugin.ts b/src/plugins/plugin.ts
index f5b385690..a37302774 100644
--- a/src/plugins/plugin.ts
+++ b/src/plugins/plugin.ts
@@ -141,10 +141,12 @@ function wrapObservable(pluginObj: any, methodName: string, args: any[], opts: a
 
     return () => {
       try {
-        if (opts.clearWithArgs) {
-          return get(window, pluginObj.pluginRef)[opts.clearFunction].apply(pluginObj, args);
+        if (opts.clearFunction) {
+          if (opts.clearWithArgs) {
+            return get(window, pluginObj.pluginRef)[opts.clearFunction].apply(pluginObj, args);
+          }
+          return get(window, pluginObj.pluginRef)[opts.clearFunction].call(pluginObj, pluginResult);
         }
-        return get(window, pluginObj.pluginRef)[opts.clearFunction].call(pluginObj, pluginResult);
       } catch (e) {
         console.warn('Unable to clear the previous observable watch for', pluginObj.name, methodName);
         console.error(e);