Question

我正在将Immer与redux reducer一起使用，并且收到此警告

Expected to return a value at the end of the arrow function

我该如何解决？

我的减速器看起来像：

export const optionReducer = (
  state = initialState,
  action: optionActionTypes
) =>
  produce(state, draft => {
    switch (action.type) {
      case OPTION_GETALL_SUCCESS: {
        draft.data = action.payload;
        break;
      }
      default:
        return draft;
    }
  });

Answer 1

在switch的一个分支中，您执行break，而在另一个分支中，进行return。您应该要么同时返回，要么同时中断然后返回函数的结尾

export const optionReducer = (
  state = initialState,
  action: optionActionTypes
) =>
  produce(state, draft => {
    switch (action.type) {
      case OPTION_GETALL_SUCCESS: {
        draft.data = action.payload;
        return draft;
      }
      default:
        return draft;
    }
  });

预期在箭头函数的末尾返回一个值-沉浸式Redux Reducer

1 个答案: