From 0482713fe0f15478a9b6decd7d099790a4a0c211 Mon Sep 17 00:00:00 2001
From: s2 <git@31337.it>
Date: Thu, 4 Sep 2014 14:22:03 +0200
Subject: [PATCH] add option not to serialize an object in callback

---
 src/form2js.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/form2js.js b/src/form2js.js
index 8814f46..e9c2d9d 100644
--- a/src/form2js.js
+++ b/src/form2js.js
@@ -253,6 +253,11 @@
 
         callbackResult = nodeCallback && nodeCallback(node);
 
+        //if the callback returns undefined do not serialize the node
+        if (nodeCallback && typeof(callbackResult) === 'undefined') {
+            return [];
+        }
+
         if (callbackResult && callbackResult.name) {
             result = [callbackResult];
         }