ES6 WeakSet example

loiane · loiane · commit 4ffc29ae936e · 2016-02-20T09:59:21.000-02:00
diff --git a/chapter07/11-ES6WeakSet.html b/chapter07/11-ES6WeakSet.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+<script src="11-ES6WeakSet.js"></script>
+</body>
+</html>
diff --git a/chapter07/11-ES6WeakSet.js b/chapter07/11-ES6WeakSet.js
@@ -0,0 +1,16 @@
+var set = new WeakSet();
+
+var ob1 = {name:'Gandalf'},
+    ob2 = {name:'John'},
+    ob3 = {name:'Tyrion'};
+
+set.add(ob1);
+set.add(ob2);
+set.add(ob3);
+
+console.log(set.has(ob1));   //outputs true
+console.log(set.has(ob2));   //outputs true
+console.log(set.has(ob3));   //outputs true
+
+set.delete(ob2);
+console.log(set.has(ob2));   //outputs false
