REDUX MASTER CLASS /// SINGLE SOURCE OF TRUTH /// DISPATCH ACTIONS /// PURE REDUCERS /// REDUX MASTER CLASS /// SINGLE SOURCE OF TRUTH /// DISPATCH ACTIONS /// PURE REDUCERS /// REDUX MASTER CLASS ///

Redux: Store, Actions, Reducers

Master the core concepts of Redux state management. Learn how to centralize state, dispatch actions, and write pure reducers.

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Tutor:Welcome to Redux. Managing state across many React components can get messy. Redux solves this by keeping all your state in one centralized place called the 'Store'.


Skill Matrix

UNLOCK NODES BY LEARNING REDUX CONCEPTS.

Concept: The Store

The central vault. It holds the complete state tree of your app.

System Check

How many Redux Stores should you typically have in an application?

Community Holo-Net

Showcase Your Reducers

ACTIVE

Built a complex global state? Share your Redux patterns and get feedback!

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Redux Concepts & Immutability

Author

Pascual Vila

Frontend Instructor // Code Syllabus

Redux provides a solid foundation for managing application state. By enforcing a unidirectional data flow, your UI remains predictable and easier to debug.

The Store

The Store brings actions and reducers together. It holds the application state, allows access to state via getState(), and allows state to be updated via dispatch(action).

Actions & Payloads

Actions are plain JavaScript objects. They must have a type property that indicates the type of action being performed. You can also attach data to the action, conventionally called the payload.

Reducers & Purity

Reducers specify how the application's state changes in response to actions. It is crucial that reducers are pure functions. They should never mutate the arguments passed to them or perform side effects (like API calls). Always return a new copy of the state!

View Full Transcript+

This section contains the full detailed transcript of the video lessons. It covers why Redux is necessary for avoiding prop-drilling, the technical breakdown of pure functions, and the importance of using the spread operator (...) to maintain immutability within reducers.

Redux Glossary

Store

The object that brings Actions and Reducers together. Holds the app state.

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Action

A plain object describing what happened. Must have a 'type'.

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Reducer

A pure function that takes (state, action) and returns a new state.

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Dispatch

The method used to send actions to the store to trigger a state change.

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Action Creator

A function that generates and returns an Action object.

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Immutability

The concept that state should never be modified directly, but copied and replaced.

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