Redux - Combined Reducers

Review, Research, and Discussion

• Why choose Redux instead of the Context API for global state?

  • Global state can get very large and complicated and the Context API is not effective handling this.

• What is the purpose of a reducer?

  • The reducer is used to prevent states are being mutated.

• What does an action contain?

  • An action contains type and payload. The type will tell the reducer what kind action it needs to perform, and the payload will pass the parameter to the reducer.

• Why do we need to copy the state in a reducer?

  • This will prevent the state is being mutated.

Document the following Vocabulary Terms

• immutable state: its value cannot be changed once it’s created
• time travel in redux: the process of logging actions and state during an app’s execution
• action creator: a function that literally creates an action object
• reducer: functions that take the current state and an action as arguments, and return a new state result
• dispatch: a function of the Redux store that will trigger a state change

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