From 98aeab6a8a8a5cc705391ef7076c761b80d57889 Mon Sep 17 00:00:00 2001
From: Nate Good <nate.good@showclix.com>
Date: Sun, 16 Aug 2015 22:03:59 -0400
Subject: [PATCH] Increment nElement

Looks like nElement never gets incremented, yet it is used in the `isEmpty` function. As a result, `isEmpty` would always return true.
---
 lib/natural/util/bag.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/natural/util/bag.js b/lib/natural/util/bag.js
index c5ddb3c25..360d90e24 100644
--- a/lib/natural/util/bag.js
+++ b/lib/natural/util/bag.js
@@ -28,6 +28,7 @@ function Bag() {
 
 Bag.prototype.add = function(element) {
     this.dictionary.push(element);
+    this.nElement++;
     return this;
 };