Functional programming singletom example

tshemsedinov · tshemsedinov · commit 01bb1e7c6a85 · 2017-11-18T20:21:02.000+02:00
diff --git a/JavaScript/5-fp.js b/JavaScript/5-fp.js
@@ -0,0 +1,8 @@
+'use strict';
+
+const singleton = (instance => () => instance)({});
+
+// Usage
+
+console.assert(singleton() === singleton());
+console.log('instances are equal');
