From c11b998681b6fdc7e809b323d4f48072bc8dfbf7 Mon Sep 17 00:00:00 2001
From: "jason.zhu" <jason.zhu@xero.com>
Date: Wed, 12 May 2021 11:41:40 +1000
Subject: [PATCH] Module 1: Understanding Block Scope

---
 app.js | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/app.js b/app.js
index c1c82aa..12e7f3d 100644
--- a/app.js
+++ b/app.js
@@ -1,9 +1,5 @@
-function greeting() {
-    let message = 'Hello';
-    let sayHi = function hi() {
-        let message = 'Hi';
-    };
-    sayHi();
-    console.log(message); // Hello as 'Hi' is out of scope
+let message = 'Hello';
+if (message === 'Hello') {
+    var count = 100; // var is within global scope, when it's not within object or function
 }
-greeting();
\ No newline at end of file
+console.log(count); // No reference error, which is dangerous
\ No newline at end of file