From dfd865dadc35242840340dbca082a49223e0e810 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Sat, 27 Feb 2016 20:44:19 -0800
Subject: [PATCH] Only use `SetCache` in `baseIntersection` only when
 `arrays[0]` is large.

---
 lodash.js | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/lodash.js b/lodash.js
index b824f901b..b3f3c2772 100644
--- a/lodash.js
+++ b/lodash.js
@@ -2766,6 +2766,7 @@
      */
     function baseIntersection(arrays, iteratee, comparator) {
       var includes = comparator ? arrayIncludesWith : arrayIncludes,
+          length = arrays[0].length,
           othLength = arrays.length,
           othIndex = othLength,
           caches = Array(othLength),
@@ -2777,14 +2778,12 @@
         if (othIndex && iteratee) {
           array = arrayMap(array, baseUnary(iteratee));
         }
-        var length = array.length;
-        maxLength = length < maxLength ? length : maxLength;
-        caches[othIndex] = !comparator && (iteratee || length >= 120)
+        maxLength = nativeMin(array.length, maxLength);
+        caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))
           ? new SetCache(othIndex && array)
           : undefined;
       }
       array = arrays[0];
-      length = array.length;
 
       var index = -1,
           seen = caches[0];