add javascript

Author: 95tuanle

javascript/CreateHelloWorldFunction2667.js

@@ -0,0 +1,8 @@
+/*
+Write a function createHelloWorld. It should return a new function that always returns "Hello World".
+*/
+
+const createHelloWorld = () => () => "Hello World";
+
+const f = createHelloWorld();
+console.log(f());