what's an action for redux? — It's an object describing what's happening. It's the only source of information fir the store. It sends the data from the app to the store. It always has a key called 'type'

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 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.

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)

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> ?

Authenticity is a collection of choices that we have to make every day. It's about the choice to show up and be real. The choice to be honest. The choice to let our true selves be seen.

Pure love and suspicion cannot dwell together: at the door where the latter enters, the former makes its exit.

There's a lot of down time on the road. That part of it I really don't enjoy. There's nothing to do.

Don't allow the fear of falling stop you from pursuing your dream. Prepare. Practice. Pray. Jump! It's through the fall that you'll realize you can to fly.

Debt certainly isn't always a bad thing. A mortgage can help you afford a home. Student loans can be a necessity in getting a good job. Both are investments worth making, and both come with fairly low interest rates.

I want to be a representative and be a role model for the Asian American community.

Now that we all live in a bad '70s sci-fi movie, I am made to understand the tyranny of the machines every minute of every day.

It's funny landing parts now where I'm somebody's mum. I remember the first time I was asked to play a mum. I was easily old enough, but because I didn't have any children, I thought, 'That seems really grown-up.'

Oh, I don't talk about God.

Sometimes that happens. I know how it feels to lose eight or nine to nothing. It can be frustrating but it was good for us. This was a team that was hot the last nine games. It seemed like any puck we touched went our way.

I'm an actor and this is a role I'm playing. But people can get wacky.

People selling content internationally need to be highly focused on selling the right product to the right buyer. If things don't succeed on a particular network, they're not going to stay on very long.

Connection gives purpose and meaning to our lives.

I'm highly political. I spend an awful lot of time in the U.S. trying to influence decision-makers. But I don't feel in tune with British politics.

I know there is a bounty on my head, such as there is with many other leaders and protesters.

I build a wall around myself. I'm hard to get to know. Any trait you have, it gets worse as you go along.

I definitely believe in a God and in a higher power, and I definitely take from many different religious cultures. I go to church.

The bad thing about living in a small town was that everything became a personal issue. The good thing about living in a small town was that everything became a personal issue. During times of trouble, the support system was massive.

I had relatives who would go to Japan and bring back random stuff they bought at the airport or whatever - 'Ultraman' and 'Speed Racer,' stuff like that.

Photos capture our memories in print, but our memories are always with us in our minds.

Part of an actor's job, in my opinion, is adjust to the characteristics of the director and try to understand to how he tries to work.