use reducer

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useReducer in React vs Vuex or Custom State Management

• React’s useReducer is a way to manage complex state logic in functional components.
• In Vue, Vuex is typically used to manage complex or global state across components.
• Alternatively, you can use a custom function to manage state updates similar to useReducer.

Example in Vue: Using Vuex for centralized state management:

javascript
// Vuex store
const store = new Vuex.Store({
  state: { count: 0 },
  mutations: {
    increment(state) { state.count++ },
    decrement(state) { state.count-- }
  }
});

// In a component
export default {
  computed: {
    count() { return this.$store.state.count; }
  },
  methods: {
    increment() { this.$store.commit("increment"); }
  }
}

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useReducer in React vs. Vuex or Custom State Management in Vue

React’s useReducer to manage complex state logic:

javascript

Copy code

import { useReducer } from 'react';

function reducer(state, action) {

  switch (action.type) {

    case 'increment': return { count: state.count + 1 };

    case 'decrement': return { count: state.count - 1 };

    default: return state;

  }

}

function Counter() {

  const [state, dispatch] = useReducer(reducer, { count: 0 });

  return (

    <div>

      <p>Count: {state.count}</p>

      <button onClick={() => dispatch({ type: 'increment' })}>Increment</button>

      <button onClick={() => dispatch({ type: 'decrement' })}>Decrement</button>

    </div>

  );

}

Vue equivalent using Vuex:

javascript

Copy code

// Vuex store

const store = new Vuex.Store({

  state: { count: 0 },

  mutations: {

    increment(state) { state.count++; },

    decrement(state) { state.count--; }

  }

});

// In a Vue component

export default {

  computed: {

    count() { return this.$store.state.count; }

  },

  methods: {

    increment() { this.$store.commit("increment"); }

  }

}

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