From f5b80c3221cd5a01a89fa0532815a9f26049a5af Mon Sep 17 00:00:00 2001
From: Chris Krycho <chris@chriskrycho.com>
Date: Mon, 19 Feb 2018 14:32:11 -0700
Subject: [PATCH] Ember: `isEvery` has optional second arg.

---
 types/ember/index.d.ts          | 2 +-
 types/ember/test/ember-tests.ts | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/types/ember/index.d.ts b/types/ember/index.d.ts
index bb268646be..1c3ca479a5 100755
--- a/types/ember/index.d.ts
+++ b/types/ember/index.d.ts
@@ -1182,7 +1182,7 @@ declare module 'ember' {
              * argument for all items in the enumerable. This method is often simpler/faster
              * than using a callback.
              */
-            isEvery(key: string, value: boolean): boolean;
+            isEvery(key: string, value?: boolean): boolean;
             /**
              * Returns `true` if the passed function returns true for any item in the
              * enumeration.
diff --git a/types/ember/test/ember-tests.ts b/types/ember/test/ember-tests.ts
index 94de3bf259..bc869948d7 100755
--- a/types/ember/test/ember-tests.ts
+++ b/types/ember/test/ember-tests.ts
@@ -130,6 +130,7 @@ const isHappy = (person: typeof Person3.prototype): boolean => {
 };
 people2.every(isHappy);
 people2.any(isHappy);
+people2.isEvery('isHappy');
 people2.isEvery('isHappy', true);
 people2.isAny('isHappy', true);
 people2.isAny('isHappy');