reactjs - 具有多个参数的 redux 工具包 reducer ？ redux 工具包

Question

鉴于此

export const slice = createSlice({
    name: 'reducer',
    initialState: {

    },
    reducers: {
       test: (state, action) => {
           console.log(action.payload) // 1
       } 

    },

})

然后我运行这个

dispatch(test(1,2,3,4,5,6,7)) 

action.payload 只是第一个参数。我如何获得其他 6 个？

Answer 1

阅读相关documentation

By default, the generated action creators accept a single argument, which becomes action.payload. This requires the caller to construct the entire payload correctly and pass it in.

所以你可以调用 Action

dispatch(test([1,2,3,4,5,6,7])) 

这样，有效负载现在将成为您传递的数组。

---

但是，如果您需要能够使用多个参数调用它，您可以使用 prepare回调

If you want to add a meta or error property to your action, or customize the payload of your action, you have to use the prepare notation.

export const slice = createSlice({
  name: 'reducer',
  initialState: {

  },
  reducers: {
    test: {
      reducer(state, action){
        console.log(action.payload) // 1
      },
      prepare(...arguments){
        return {
          payload: arguments;
        }
      }
    }
  },
});

这样，您调用操作的原始方式将再次产生一个数组的有效负载，该数组将包含您传递的所有参数，无论它们的数量如何。