@@ -0,0 +1,13 @@
+var memberArray = ['egoing', 'graphittie', 'leezhce'];
+console.log("memberArray[2]", memberArray[2]);
+
+var memberObject = {
+    manager:'egoing',
+    developer:'graphittie', 
+    designer:'leezhce'
+}
+memberObject.designer = 'leezche';
+console.log("memberObject.designer", memberObject.designer);
+console.log("memberObject['designer']", memberObject['designer']);
+delete memberObject.manager
+console.log('after delete memberObject.manager', memberObject.manager);