??

?? ??? ?? React ??????? ????? Redux? ?? ?? ?????? ??? ???? ??? ? ????. React? ?? ???? ??? ?? ?? ???? Zustand? ?????. ? ?????? Zustand? ?????? ??? ?? ??? React ?????? Zustand? ???? ??? ?? ??? ???????.

????? ??????

Zustand? ???? ????? ??? React? ?? ?? ????????. ??? ???? ?? ???? ???? Redux? React Context API?? ????? ? ????. React ???????? Zustand? ??? ??? ? ??? ???????.

React?? Zustand ????

• Zustand ??
  

  npm install zustand
  

• ??? ???
  ??? Zustand?? ??? ??? ??? ?? ??? ????.
  

  import {create} from 'zustand';
  
  const useStore = create((set) => ({
    count: 0,
    increase: () => set((state) => ({ count: state.count + 1 })),
    decrease: () => set((state) => ({ count: state.count - 1 })),
  }));
  

• ?? ???? Store ??
  ?? React ?? ???? ???? ??? ?????.
  

  import React from 'react';
  import { useStore } from './store';
  
  const Counter = () => {
    const { count, increase, decrease } = useStore();
  
    return (
      <div>
        <h1>{count}</h1>
        <button onClick={increase}>Increase</button>
        <button onClick={decrease}>Decrease</button>
      </div>
    );
  };
  
  export default Counter;
  

?? Zustand ??: get, getState

• Zustand? get? getState?? ? ?? ??? ??? ?????. ?? ??? ???? ???? ??? ???? ? ?????

getState(): ? ??? ?? ???? ???? ??? ??? ?? ??? ?????.

import {create} from 'zustand';

const useStore = create((set) => ({
  count: 0,
  increase: () => set((state) => ({ count: state.count + 1 })),
  decrease: () => set((state) => ({ count: state.count - 1 })),
}));

// Accessing the current state using getState()
const count= useStore.getState().count;

// Reading the current state value
console.log(count); // This will log the current count

// Modifying the state using the actions
store.increase(); // This will increase the count
console.log(store.count); // This will log the updated count

get(): ? ??? ???? ??? ?? ??? ??? ?? ???? ? ????. ?? ??? ?? ? ??? ????? ???? ? ? ?????.

import {create} from 'zustand';

const useStore = create((set, get) => ({
  count: 0,
  increase: (amount) => {
    const currentState = get(); // Access the current state using getState()
    console.log("Current count:", currentState.count); // Log the current count
    set((state) => ({ count: state.count + amount })); // Modify the state
  },
})); 

Zustand? ??

• ??????? ???? ?? ??? ? ?? ???? ?? ???? ???? ?? ????. ??? ????? ???? ????. ????? ?? ?? ??? ?? ??? ?? ?????. ? ????? ?? ??? ??? ? ???? ??? ? ???? ?? ??? ?????.

// counterStore.js
export const createCounterSlice = (set) => ({
  count: 0,
  increase: () => set((state) => ({ count: state.count + 1 })),
  decrease: () => set((state) => ({ count: state.count - 1 })),
});

// userStore.js
export const createUserSlice = (set) => ({
  user: { name: 'John Doe' },
  setName: (name) => set({ user: { name } }),
});

// useBoundStore.js
import {create} from 'zustand';
import { createCounterSlice } from './counterStore';
import { createUserSlice } from './userStore';

export const useBoundStore = create((...a) => ({
  ...createCounterSlice(...a),
  ...createUserSlice(...a),
}));

?? ???? ?? ??

import { useBoundStore } from './useBoundStore'
const App = () => {
  const { count, increase, decrease, user, setName } = useBoundStore();
}

Zustand? ???? ??

• Zustand? ?? ????? ??? ??? ? ???? localStorage? ??? ???? ???? ?? ??? ? ?? ???? ?? ?? ?? ??? ???? ????? ???.

import {create} from 'zustand';
import { persist } from 'zustand/middleware';

const useStore = create(
  persist(
    (set) => ({
      count: 0,
      increase: () => set((state) => ({ count: state.count + 1 })),
      decrease: () => set((state) => ({ count: state.count - 1 })),
    }),
    {
      name: 'counter-storage', // The name of the key in localStorage
    }
  )
);

Zustand? API?? ??? ????

• Zustand? API?? ???? ????? ??? ??? API ??? ???? ??? ???, ?? ? ?? ??? ??? ?????? ??? ?????.

import {create} from 'zustand';

const useStore = create((set) => ({
  users: [], // Array to store fetched users
  loading: false, // State to track loading status
  error: null, // State to track any errors during API call

  // Action to fetch users from the API
  fetchUsers: async () => {
    set({ loading: true, error: null }); // Set loading state to true and reset error
    try {
      const response = await fetch('https://jsonplaceholder.typicode.com/users');
      const data = await response.json();
      set({ users: data, loading: false }); // Set users data and loading to false
    } catch (error) {
      set({ error: 'Failed to fetch users', loading: false }); // Set error if fetch fails
    }
  },
}));

export default useStore;

? ??? Zusstand? ??? React? ?? ??? ?? ??? ???? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!