From 34d13662dd5faaa93f3f96d99d98bd0e174f2642 Mon Sep 17 00:00:00 2001
From: Bill Long <bill@blackout.us>
Date: Fri, 17 Apr 2015 00:50:52 -0500
Subject: [PATCH] Compare against undefined not empty string

---
 angular-rich-text-diff.js | 2 +-
 angular-rich-text-diff.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/angular-rich-text-diff.js b/angular-rich-text-diff.js
index a401f54..467c127 100644
--- a/angular-rich-text-diff.js
+++ b/angular-rich-text-diff.js
@@ -113,7 +113,7 @@ var AngularRichTextDiff;
                     continue;
                 }
                 var tagString = this.tagMap[diffableString[x]];
-                if (tagString === '') {
+                if (tagString === undefined) {
                     // We somehow have a character that is above our range but didn't map
                     // Do we need to add an upper bound or change the range?
                     htmlString += diffableString[x];
diff --git a/angular-rich-text-diff.ts b/angular-rich-text-diff.ts
index 6bfc085..22d47e5 100644
--- a/angular-rich-text-diff.ts
+++ b/angular-rich-text-diff.ts
@@ -137,7 +137,7 @@ module AngularRichTextDiff {
                 }
 
                 var tagString = this.tagMap[diffableString[x]];
-                if (tagString === '') {
+                if (tagString === undefined) {
                     // We somehow have a character that is above our range but didn't map
                     // Do we need to add an upper bound or change the range?
                     htmlString += diffableString[x];