From 153fe61b4b8e829d7fa1a2e1babe2dcd06a85ebb Mon Sep 17 00:00:00 2001
From: jdalton <john.david.dalton@gmail.com>
Date: Wed, 18 Feb 2015 21:05:39 -0800
Subject: [PATCH] Avoid iterating strings in `_.merge`. [closes #978]

---
 lodash.src.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lodash.src.js b/lodash.src.js
index 3a6a9f09f..6bc73ed09 100644
--- a/lodash.src.js
+++ b/lodash.src.js
@@ -2548,8 +2548,10 @@
      * @returns {Object} Returns the destination object.
      */
     function baseMerge(object, source, customizer, stackA, stackB) {
+      if (!isObjectLike(object)) {
+        return object;
+      }
       var isSrcArr = isLength(source.length) && (isArray(source) || isTypedArray(source));
-
       (isSrcArr ? arrayEach : baseForOwn)(source, function(srcValue, key, source) {
         if (isObjectLike(srcValue)) {
           stackA || (stackA = []);