From 0b61cd5ecf5e17fc96c67ce49987cda73e9a5583 Mon Sep 17 00:00:00 2001
From: Rich Trott <rtrott@gmail.com>
Date: Fri, 22 May 2015 18:28:12 -0700
Subject: [PATCH] readline: simplify condition, accept any falsy value for
 undefined

---
 lib/readline.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/readline.js b/lib/readline.js
index dc1cf977a38c3c..2cdd2cf392c71f 100644
--- a/lib/readline.js
+++ b/lib/readline.js
@@ -47,9 +47,7 @@ function Interface(input, output, completer, terminal) {
   }
   historySize = historySize || kHistorySize;
 
-  completer = completer || undefined;
-
-  if (typeof completer !== 'function' && typeof completer !== 'undefined') {
+  if (completer && typeof completer !== 'function') {
     throw new TypeError('Argument \'completer\' must be a function');
   }