Example optimizations

Author: tshemsedinov

JavaScript/3-closure.js

@@ -12,8 +12,8 @@ function maybe(x) {
 
 // Usage
 
-/*maybe(5)()(console.log);
+maybe(5)()(console.log);
 maybe(5)(x => ++x)(console.log);
 maybe(5)(x => x * 2)(console.log);
-maybe(null)(x => x * 2)(console.log);*/
-maybe(5)(x => x * 2)()(console.log);
+maybe(null)(x => x * 2)(console.log);
+maybe(5)(x => x * 2)(x => ++x)(console.log);

JavaScript/8-counter.js

@@ -17,15 +17,15 @@ const counter = initial => {
 
 Counter.prototype.on = function(n, callback) {
   const event = this.events[n];
-  if (event) event.push(callback); else this.events[n] = [callback];
+  if (event) event.push(callback);
+  else this.events[n] = [callback];
   return this(0);
 };
 
 // Usage
 
 const c = counter(10);
 c.on(5, val => console.log('Counter > 5, value:', val));
-c.on(5, val => console.log('Counter > 5, value:', val));
 c.on(25, val => console.log('Counter > 25, value:', val));
 c(5);
 setTimeout(() => c(15), 100);