From ee8f5d16f849e8e45f160c3ea5f0fa1ed265d1b8 Mon Sep 17 00:00:00 2001
From: Khaled Al-Ansari <khaledelansari@gmail.com>
Date: Thu, 5 Oct 2017 16:50:15 +0300
Subject: [PATCH] Update `is.boolean()` method (#15)

---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index b3d52b9..f7a16fd 100644
--- a/index.js
+++ b/index.js
@@ -61,7 +61,7 @@ is.undefined = isOfType('undefined');
 is.null = x => x === null;
 is.string = isOfType('string');
 is.number = isOfType('number');
-is.boolean = isOfType('boolean');
+is.boolean = x => x === true || x === false;
 is.symbol = isOfType('symbol');
 
 is.array = Array.isArray;