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[Step2-05] Reorder definitions

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JD Huntington
2019-02-25 11:20:26 -08:00
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step2-05/README.md
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@@ -18,14 +18,14 @@ Facebook invented a the Flux pattern to solve this shared state issue. Redux is
These are the React Components that consume the store as its data. There is a special way Redux will map its data from the state tree into the different React Components. The Components will know to re-render when these bits of state are changed.
## Action
Actions are messages that represent some event, such as a user's action or a network request. With the aid of _reducers_, they affect the overall state.
## Store
This is a singleton state tree. The state tree is immutable and needs to be re-created at every action. This helps connected views to know when to update itself - just doing a simple reference comparison rather than a deep comparison.
## Action
Actions are messages to be dispatched to the store to let reducers to change (replace reference of) the state tree.
## Reducers
These are simple stateless, pure functions that takes state + action message and returns a copy of state some modifications according to the action message type and payload.