create-next-core-base/setup/features/redux/store/slice/counter/counterSlice.ts

CLI tool to create Next Base projects with feature selection

import { CounterState } from "@/store/slice/counter/counterSliceType";
import { createSlice } from "@reduxjs/toolkit";
import type { PayloadAction } from "@reduxjs/toolkit";

const initialState: CounterState = {
  value: 0,
};

export const counterSlice = createSlice({
  name: "counter",
  initialState,
  reducers: {
    increment: (state) => {
      state.value += 1;
    },
    decrement: (state) => {
      state.value -= 1;
    },
    incrementByAmount: (state, action: PayloadAction<number>) => {
      state.value += action.payload;
    },
  },
});

export const { increment, decrement, incrementByAmount } = counterSlice.actions;

export const selectCount = (state: { counter: CounterState }) =>
  state.counter.value;

export default counterSlice.reducer;