Closure singletom example

tshemsedinov · tshemsedinov · commit b42227213445 · 2017-11-18T20:20:41.000+02:00
diff --git a/JavaScript/4-closure.js b/JavaScript/4-closure.js
@@ -0,0 +1,11 @@
+'use strict';
+
+const singleton = (() => {
+  const instance = {};
+  return () => instance;
+})();
+
+// Usage
+
+console.assert(singleton() === singleton());
+console.log('instances are equal', singleton());
