Simplify Konami Code code further

lib/konami.js

@@ -1,51 +1,35 @@
-
 var Konami = {};
 
 (function() {
-	/**
-	 * Creates an event handler responding to the specified sequence.
-	 * @param {number[]} keySequence
-	 * @param {function()} actionCallback
-	 * @return {function(Event)}
-	 */
-	var sequence = function(sequence, action) {
+	var afterSequence = function(sequence, action) {
 		var index = 0;
 
-		/**
-		 * Event handler
-		 * @param {Event} event
-		 */
-		return function(e) {
-			var pressedKey = e.keyCode || e.which;
-			
-			var matchedKey = pressedKey === sequence[index];
+		return function(event) {
+			var matchedKey = event.keyCode === sequence[index];
 			// if it didn't match, reset and try matching against the first key
 			if (!matchedKey) {
 				index = 0;
-				matchedKey = pressedKey === sequence[index];
+				matchedKey = event.keyCode === sequence[index];
 			}
-			
+
 			if (matchedKey) {
 				index += 1;
+
 				if (index === sequence.length) {
-					// fire action
-					action();
-	
+
 					// reset when sequence completed
 					index = 0;
+
+					// fire action
+					action();
 				}
 			}
-			
+
 		};
 	};
 
-	/**
-	 * Creates an event handler responding to the Konami Code.
-	 * @param {function()} action completed sequence callback
-	 * @return {function(Event)}
-	 */
 	Konami.code = function(action) {
-		return sequence([38, 38, 40, 40, 37, 39, 37, 39, 66, 65], action);
+		return afterSequence([38, 38, 40, 40, 37, 39, 37, 39, 66, 65], action);
 	};
 
 }());