From 23d19d230b18a0574b98ad5b55b88f7c136071f5 Mon Sep 17 00:00:00 2001
From: Yury Delendik <ydelendik@mozilla.com>
Date: Fri, 11 Apr 2014 11:40:48 -0700
Subject: [PATCH] Updated Style Guide (markdown)

---
 Style-Guide.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Style-Guide.md b/Style-Guide.md
index c4b02ef..81a53eb 100644
--- a/Style-Guide.md
+++ b/Style-Guide.md
@@ -39,6 +39,10 @@ if (someVar === conditionA) {
 
 _Note: This wasn't always followed, but any new code should do this._
 
+## Variables
+
+Variables must be defined only once within a function scope. Preferably at the top of the function.
+
 ## Classes
 The standard way of creating classes in PDF.js is the following. Please note that by class we mean an object that is class-like. Also, note the naming of all anonymous functions.