issue-72 singleton example

example/hello-world.ts

@@ -1 +1,39 @@
-console.log("Hello World")
+var Singleton = (function() {
+
+  var Singleton = function() {
+    this.type = "0";
+  }
+  var instance = null;
+
+  var createInstance = function() {
+    instance = new Singleton();
+    return instance;
+  }
+
+  return {
+    getInstance : function() {
+      if(!instance) {
+        instance = createInstance();
+      }
+      return instance;
+    }
+  };
+
+})();
+
+​
+function Client() {}
+
+Client.prototype.test = function() {
+
+  var s1 = Singleton.getInstance();
+  var s2 = Singleton.getInstance();
+
+  if(s1 === s1) {
+    console.log("Both variables contain the same instance.");
+  }else{
+      console.log("Variables contain different instances.");
+  }
+}
+
+new Client().test();