Data lifecycle: 1. You call store.dispatch(action) 2. Redux store calls the reducer function 3. combine output of multiple reducer into on single state tree 4. Redux store returns the complete state tree (returned by the root reducer)

why JSX?

can you have more than one root dom nodes?

How do you render an element into the dom?

Are React elements mutable?

There are two ways of defining a component: as a function and as a ...

What is the advantage of a class component over a functional component?

How do you add local state to a class?

why are lifecycle hooks important?

Does redux work only with react?

Core concepts: actions reducers

what's an action for redux?

What's the purpose of a reducer?

what are the 2 params passed to a reducer?

what are the advantages of a single store?

How is Redux different from Flux?

advantage of immutability in Redux?

Redux architecture revolves around a strict unidirectional data flow.

Ex with a combineReducers() function todos(state = [], action) { // Somehow calculate it... return nextState } ​ function visibleTodoFilter(state = 'SHOW_ALL', action) { // Somehow calculate it... return nextState } ​ let todoApp = combineReducers({ todos, visibleTodoFilter })

React bindings for Redux embrace the idea of separating presentational and container components.

Container Components: How things work (data fetching, state updates) Dispatch Redux actions Are usually generated by React Redux

Presentational Components How things look (markup, styles) Invoke callbacks from props to change data Are written by hand

You could write a container component by hand, but we suggest instead generating container components with the React Redux library's connect() function, which provides many useful optimizations to prevent unnecessary re-renders.

To use connect(), you need to define a special function called mapStateToProps that tells how to transform the current Redux store state into the props you want to pass to a presentational component you are wrapping.

In addition to reading the state, container components can dispatch actions. In a similar fashion, you can define a function called mapDispatchToProps() that receives the dispatch() method and returns callback props that you want to inject into the presentational component.

Connecting react and redux: import { connect } from 'react-redux' ​ const VisibleTodoList = connect( mapStateToProps, mapDispatchToProps )(TodoList) ​ export default VisibleTodoList

Redux component <Provider> : is used to magically make the store available to all container components in the application without passing it explicitly. You only need to use it once when you render the root component:

How do you use <provider> ?

It's good fun, making a solo album, because there's perhaps songs that wouldn't get used for the Stones or any other kind of outfit that I'm working with. It's just nice to be the boss.

Death is the sanction of everything the story-teller can tell. He has borrowed his authority from death.

Sometimes our lives have to be completely shaken up, changed, and rearranged to relocate us to the place we are meant to be.

If you feel you have to open a particular door open it otherwise all your life that door will haunt your mind

Practical dreamers have always been and always will be the pattern-makers of civilization.

I think shareholders are the great evil of this modern world.

Being mum is a number one job. That takes priority.

The question isn't who is going to let me; it's who is going to stop me.

I definitely lived my life like I wasn't in the public eye.

Everyone has a different body shape, so you kind of have to figure out not only what works best for your body type, but what also makes you feel confident. Even if everyone thinks you look good in a bikini, and you don't feel good in it, you're not going to be at your best. If you feel great in a bikini, you can always work it.

Always leave enough time in your life to do something that makes you happy, satisfied, even joyous. That has more of an effect on economic well-being than any other single factor.

I think I was programmed to do good things when I came into the majors. I knew how to play.

The rich are those who play to win. The middle class plays not to lose.

Reinvention is the key to surviving this fashion industry. Madonna is the perfect example of reinvention. She has taken something that is so little and turned herself into a legend by simply never staying the same.

I think everyone has dreams, and it's just how you go about pursuing that. And I think anybody can do anything that they set their mind to. So if you set your mind to do something, and you exhaust every opportunity, I think you're going to get there.

Mother the ribbons of your love are woven around my heart.

The young Obama's lack of playing time on the high school basketball team was due more to his ability than the coach's preference for white players.

Pay attention to other people's nightmares because they might be contagious.

Fathers be your daughters 1st love and shell never settle for anything less.

It is an extraordinary coincidence you start to think there is more to it but nothing has been found yet. If it happens again we would have to look deeper into it.

When I left 20th Century-Fox to freelance, my agent believed that getting big money was the way to establish real importance in our industry.