类型缺少调用签名的表达式不能调用吗？

Question

我在combineReducers (import { combineReducers } from 'redux-immutable')的typescript中这样打电话：

return combineReducers({
    byId,
    visibleIds
})(state, action)

但打字本抱怨道：

Cannot invoke an expression whose type lacks a call signature.

所以我看到了类型定义文件：

declare module "redux-immutable" {
    export function combineReducers(reducers : Object): Object;
}

如何正确调用combineReducer？

Answer 1

类型定义是错误的，这应该有效：

declare module "redux-immutable" {
    export function combineReducers(reducers : Object): Function;
}

虽然类型定义是正式的，但Redux类型是：

function combineReducers<S>(reducers: ReducersMapObject): Reducer<S>;