Merge pull request #95 from rkrupinski/master

Fixed: mixed up conditionals

Author: vasanthk

patterns/23.flux-pattern.md

@@ -21,7 +21,7 @@ var Dispatcher = function () {
 We expect the store to have an update method(), so let's modify register to expect it.
 ```javascript
 function register(store) {
-  if (!store || !store.update && typeof store.update === 'function') {
+  if (!store || !store.update || typeof store.update !== 'function') {
     throw new Error('You should provide a store that has an update method');
   } else {
     this._stores.push({store: store});