Merge branch 'ISSUE-22'

05_get-state.js Object Spread

Fix Object Spread is an ES7 featurev + details its use

Author: happypoulp

.gitignore

@@ -3,3 +3,4 @@ npm-debug.log
 .DS_Store
 dist
 nested-dispatch.js
+test.js

05_get-state.js

@@ -92,7 +92,17 @@ console.log('redux state after initialization:', store_3.getState())
 //     2) When using a switch, NEVER forget to have a "default: return state" because 
 //        if you don't, you'll end up having your reducer return undefined (hence loosing your state).
 //     3) Notice how we returned a new state made by merging current state with { message: action.value },
-//        all that thanks to this awesome es6 notation: { ...state, message: action.value }
+//        all that thanks to this awesome ES7 notation (Object Spread): { ...state, message: action.value }
+//     4) Note also that this ES7 Object Spread notation suits our example because it's doing a shallow
+//        copy of { message: action.value } over our state (meaning that first level property of state
+//        are completely overwritten - by opposition to gracefully merged - by first level property of
+//        { message: action.value }). But if we had a more complex / nested data structure, you may choose
+//        to handle your state's updates very differently:
+//        - using Immutable.js (https://facebook.github.io/immutable-js/)
+//        - using Object.assign (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
+//        - using manual merge
+//        - or whatever other strategy that suits your needs and the structure of your state since
+//          Redux is absolutely NOT opiniated on this (remember, Redux is a state container).
 
 // Now that we're starting to handle actions in our reducer let's speak about having multiple reducers and
 // combining them.

README.md

@@ -8,7 +8,7 @@ This repository contains a step by step tutorial to get a grasp about flux and m
 The official and very exhaustive Redux documentation is available [here](http://gaearon.github.io/redux/) and should be your number One source of truth regarding Redux. The present tutorial only will offer you an introduction to flux concepts through Redux use but for further or more detailled infos, please refer to the Redux documentation.
 
 ### Prerequisites
-It is required for you to know a bit of ES6 to understand correctly some of the examples given in this repo. Be also aware that this tutorial targets redux 1.0.0.
+It is required for you to know a bit of ES6 and ES7 (Object Spread) to understand correctly some of the examples given in this repo. Be also aware that this tutorial targets redux 1.0.0.
 
 ### Clone the repository
 `git clone https://github.com/happypoulp/redux-tutorial.git`