From 3490f8acb5627b5c426ac2262dc6bc5a8628e9a1 Mon Sep 17 00:00:00 2001
From: jdalton <john.david.dalton@gmail.com>
Date: Fri, 15 May 2015 20:36:34 -0700
Subject: [PATCH] Ensure `LodashWrapper.prototype.thru` exists before creating
 a wrapper in `flow`.

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

diff --git a/lodash.src.js b/lodash.src.js
index 53c4b1dce..c970ceda6 100644
--- a/lodash.src.js
+++ b/lodash.src.js
@@ -3488,7 +3488,7 @@
           if (typeof func != 'function') {
             throw new TypeError(FUNC_ERROR_TEXT);
           }
-          if (!wrapper && getFuncName(func) == 'wrapper') {
+          if (!wrapper && LodashWrapper.prototype.thru && getFuncName(func) == 'wrapper') {
             wrapper = new LodashWrapper([]);
           }
         }