---
title: state
---

# runtime.state

- **Type:** `boolean | object`
- **Default:** `false`

Once `state` is enabled, you can use [Model](/guides/topic-detail/model/quick-start) for state management.

## models

- **Type:** `Array<Model>`
- **Default:** `[]`

Register model objects that are mounted in advance, and these models will be mounted immediately after the Reduck store is created. Generally, there is no need to mount in advance.

## initialState

- **Type:** `Object`
- **Default:** `{}`

Used to set the initial state of the global store. Generally used for SSR to initialize data during the hydration phase.

## immer

- **Type:** `boolean`
- **Default:** `true`

Whether to enable to update the state with mutable, it is enabled by default, and set to `false` if you want to disable it.

## effects

- **Type:** `boolean`
- **Default:** `true`

Whether to enable the side effect management feature, it is enabled by default, and set to `false` if you want to disable it.

## autoActions

- **Type:** `boolean`
- **Default:** `true`

Whether to enable the auto-generated actions feature, it is enabled by default, and set to `false` if you want to disable it.

## devtools

- **Type:** `boolean | EnhancerOptions`
- **Default:** `true`

Whether to enable devtools, it is enabled by default, and all parameters of [redux-devtools-extension](https://github.com/zalmoxisus/redux-devtools-extension/blob/master/docs/API/Arguments.md) are supported at the same time. If you want to disable it, set it to `false`.
