Type-checking Redux State with propTypes (without React)

withPropTypes.js

const withPropTypes = (name, propTypesSchema) => reducer => {
    if (process.env.NODE_ENV === 'development') {
        return (state, action) => {
            const result = reducer(state, action)

            propTypes.checkPropTypes(
                { state: propTypesSchema },
                { state: result },
                'property',
                name,
            )

            return result
        }
    }
    return reducer
}

export default withPropTypes