From c278d345f8cb5941aad22d128a9a20675b951eb0 Mon Sep 17 00:00:00 2001
From: amitpandey1986 <66904236+amitpandey1986@users.noreply.github.com>
Date: Sun, 23 Jun 2024 07:02:18 +0530
Subject: [PATCH] Update 07-facade-observer.md

previous will only change when there is a change in current in comparison to current previous.
---
 notes/07-facade-observer.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/notes/07-facade-observer.md b/notes/07-facade-observer.md
index 69e3dca..264b553 100644
--- a/notes/07-facade-observer.md
+++ b/notes/07-facade-observer.md
@@ -146,8 +146,9 @@ public class BitcoinPoller {
         Bitcoin currentBitcoin = bitcoinTracker.getBitcoin();
         if (currentBitcoin.getPrice() != previousBitcoin.getPrice()) {
             sendEmail();
+            this.previousBitcoin = currentBitcoin;
         }
-        this.previousBitcoin = currentBitcoin;
+        
     }
 }
 ```
@@ -255,4 +256,4 @@ public class Client {
 * [Observer Pattern - III](https://www.oreilly.com/library/view/learning-javascript-design/9781449334840/ch09s05.html)
 * [Observer Pattern - IV](https://www.dottedsquirrel.com/observer-pattern-javascript/)
 * [Observer Pattern - V](https://blog.bitsrc.io/the-observer-pattern-in-javascript-the-key-to-a-reactive-behavior-f28236e50e10)
-* [Observer Pattern - VI](https://www.digitalocean.com/community/conceptual_articles/observer-design-pattern-in-javascript)
\ No newline at end of file
+* [Observer Pattern - VI](https://www.digitalocean.com/community/conceptual_articles/observer-design-pattern-in-javascript)