From c24f3e4208cd045832002ee9916559f6fe0dc2b5 Mon Sep 17 00:00:00 2001
From: Mads K <madskonradsen@users.noreply.github.com>
Date: Thu, 2 Nov 2017 21:58:21 +0100
Subject: [PATCH] fix(events): properly $off array of events (#6949)

---
 src/core/instance/events.js                        | 2 +-
 test/unit/features/instance/methods-events.spec.js | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/core/instance/events.js b/src/core/instance/events.js
index 469ef970b15..587799969c2 100644
--- a/src/core/instance/events.js
+++ b/src/core/instance/events.js
@@ -92,7 +92,7 @@ export function eventsMixin (Vue: Class<Component>) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null
       return vm
     }
diff --git a/test/unit/features/instance/methods-events.spec.js b/test/unit/features/instance/methods-events.spec.js
index be150076992..88834577f26 100644
--- a/test/unit/features/instance/methods-events.spec.js
+++ b/test/unit/features/instance/methods-events.spec.js
@@ -41,6 +41,13 @@ describe('Instance methods events', () => {
     expect(spy.calls.count()).toBe(1)
   })
 
+  it('$off multi event without callback', () => {
+    vm.$on(['test1', 'test2'], spy)
+    vm.$off(['test1', 'test2'])
+    vm.$emit('test1')
+    expect(spy).not.toHaveBeenCalled()
+  })
+
   it('$once', () => {
     vm.$once('test', spy)
     vm.$emit('test', 1, 2, 3)