Redux

Redux is a state management library
1 Create Initial State
2 Define Action Types
3 Define Action Creators
4 Create Reducers
5 Change the initial State
6 Pass the parameters to the Creator function and the reducers

Code
// Initial State

const initialState = {
  todos: [
    {
      text: "eat food",
    },
    {
      text: "Exercise",
    },
  ],
};

// Action Types
// create a simple action type

const ADD_TODO = "ADD_TODO";

// ACtion creators

function addTodo(text) {
  return {
    type: ADD_TODO,
    payload: text,
  };
}

//create reducers
function todoReducer(state = [], action) {
  switch (action.type) {
    case ADD_TODO:
      return [...state.todos, { text: action.payload }];
    default:
      return state;
  }
}

console.log("Initial State : ", initialState);

// Lets make changes to initial states
const action = addTodo("Make it work");
const newState = todoReducer(initialState, action);

console.log(newState);

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Rubixphys12 15320 points

                                    Use Redux tool kit

Thank you! 0

3.67

Awgiedawgie 440215 points

                                    npm install redux // adding redux to the project
// creating types 
export const SET_USER = 'SET_USER'
//creating actions 
export const setUser = user =&gt; {
  return {
    type : SET_USER,
    payload : {
      currentUser : user
    }
  }
// creating reducers 
  const user_reducer = (state=intialState,action)=&gt;{
    switch(action.type){
      case SET_USER :
        return {
          currentUser : action.payload.currentUser
        }
    }

Thank you! 3

3.67 (3 Votes)

Awgiedawgie 440215 points

                                    npm install redux // adding redux to the project
// creating types 
export const SET_USER = 'SET_USER'
//creating actions 
export const setUser = user =&gt; {
  return {
    type : SET_USER,
    payload : {
      currentUser : user
    }
  }
// creating reducers 
  const user_reducer = (state=intialState,action)=&gt;{
    switch(action.type){
      case SET_USER :
        return {
          currentUser : action.payload.currentUser
        }
    }

Thank you! 0

Phoenix Logan 186120 points

                                    &gt; Redux is an open-source JavaScript library for managing application state.
&gt; It is most commonly used with libraries such as React or Angular for 
building user interfaces.

Thank you! 0

3.86

Awgiedawgie 440215 points

                                    // component.js
showNotificationWithTimeout(this.props.dispatch, 'You just logged in.')

// otherComponent.js
showNotificationWithTimeout(this.props.dispatch, 'You just logged out.')  
复制代码

Thank you! 7

3.86 (7 Votes)

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