From b848a268d33ea08176c01332f3419bba20f9e851 Mon Sep 17 00:00:00 2001
From: markau <mandrews@internode.on.net>
Date: Thu, 9 Jan 2014 10:49:50 +1030
Subject: [PATCH] This simply implements resolution to issue #11 as raised and
 debugged by dcodeIO.  Improves bcrypt-nodejs compatability with the bcrypt
 package

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

diff --git a/bCrypt.js b/bCrypt.js
index 87ad4c6..c243c84 100644
--- a/bCrypt.js
+++ b/bCrypt.js
@@ -617,9 +617,10 @@ function hash(data, salt, progress, callback) {
 			error - First parameter to the callback detailing any errors.
 			encrypted - Second parameter to the callback providing the encrypted form.
 	*/
-	if(!callback) {
-		throw "No callback function was given."
-	}
+    if(typeof callback == 'undefined') {
+        callback = progress;
+        progress = null;
+    }
 	process.nextTick(function() {
 		var result = null;
 		var error = null;