From f7e05e438eaa73e1865801f47179ba3ec1c403d3 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Tue, 15 Sep 2015 20:34:11 -0700
Subject: [PATCH] Avoid creating an array in `stringSize`.

---
 lodash.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/lodash.js b/lodash.js
index 2b9b51e6a..53143cd8f 100644
--- a/lodash.js
+++ b/lodash.js
@@ -1183,9 +1183,14 @@
    * @returns {number} Returns the string size.
    */
   function stringSize(string) {
-    return (string && reStrSurrogate.test(string))
-      ? stringToArray(string).length
-      : string.length;
+    if (!(string && reStrSurrogate.test(string))) {
+      return string.length;
+    }
+    var result = reStrSymbol.lastIndex = 0;
+    while (reStrSymbol.test(string)) {
+      result++;
+    }
+    return result;
   }
 
   /**