From fed2bd6ab841baaa8993f7ff853db638dbb83ede Mon Sep 17 00:00:00 2001
From: Michael Bolin <mbolin@fb.com>
Date: Thu, 29 Jan 2015 12:33:14 -0800
Subject: [PATCH] fixed a bug in updateDigestForJsonValue with how null was
 handled

---
 src/esnext.coffee | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/esnext.coffee b/src/esnext.coffee
index faee71ea7..e23d048d4 100644
--- a/src/esnext.coffee
+++ b/src/esnext.coffee
@@ -51,13 +51,14 @@ updateDigestForJsonValue = (shasum, value) ->
   # * Strings are not escaped.
   # * No effort is made to avoid trailing commas.
   # These shortcuts should not affect the correctness of this function.
-  if typeof value is 'string'
+  type = typeof value
+  if type is 'string'
     shasum.update('"', 'utf8')
     shasum.update(value, 'utf8')
     shasum.update('"', 'utf8')
-  else if typeof value in ['boolean', 'number']
+  else if type in ['boolean', 'number']
     shasum.update(value.toString(), 'utf8')
-  else if typeof value is null
+  else if value is null
     shasum.update('null', 'utf8')
   else if Array.isArray value
     shasum.update('[', 'utf8')