added ES6 class; updated from var to let

loiane · loiane · commit 7ea6366f1cd0 · 2016-01-23T19:18:39.000-02:00
diff --git a/chapter04/02-UsingQueues.html b/chapter04/02-UsingQueues.html
@@ -6,6 +6,7 @@
 </head>
 <body>
 <script type="text/javascript" src="01-Queue.js"></script>
+<script type="text/javascript" src="01-Queue2.js"></script>
 <script type="text/javascript" src="02-UsingQueues.js"></script>
 </body>
 </html>
diff --git a/chapter04/02-UsingQueues.js b/chapter04/02-UsingQueues.js
@@ -1,4 +1,4 @@
-var queue = new Queue();
+let queue = new Queue();
 console.log(queue.isEmpty()); //outputs true
 queue.enqueue("John");
 queue.enqueue("Jack");

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-var queue = new Queue();`
	`1`	`+let queue = new Queue();`
`2`	`2`	`console.log(queue.isEmpty()); //outputs true`
`3`	`3`	`queue.enqueue("John");`
`4`	`4`	`queue.enqueue("Jack");`