createGlobalState

Category

State

Export Size

152 B

Last Changed

3 hours ago

Related

createSharedComposable

将状态保留在全局范围内，以便在 Vue 实例之间重复使用。

Demo

source

name: Banana
color: Yellow
size: Medium

用法

无持久性（存储在内存中）

import { createGlobalState } from '@vueuse/core'
// store.js
import { shallowRef } from 'vue'

export const useGlobalState = createGlobalState(
  () => {
    const count = shallowRef(0)
    return { count }
  }
)

更大的示例：

import { createGlobalState } from '@vueuse/core'
// store.js
import { computed, shallowRef } from 'vue'

export const useGlobalState = createGlobalState(
  () => {
    // state
    const count = shallowRef(0)

    // 计算属性
    const doubleCount = computed(() => count.value * 2)

    // 动作
    function increment() {
      count.value++
    }

    return { count, doubleCount, increment }
  }
)

使用持久性

使用 useStorage 将数据存储在 localStorage 中：

// store.js
import { createGlobalState, useStorage } from '@vueuse/core'

export const useGlobalState = createGlobalState(
  () => useStorage('vueuse-local-storage', 'initialValue'),
)

// component.js
import { useGlobalState } from './store'

export default defineComponent({
  setup() {
    const state = useGlobalState()
    return { state }
  },
})

Type Declarations

/**
 * Keep states in the global scope to be reusable across Vue instances.
 *
 * @see https://vueuse.org/createGlobalState
 * @param stateFactory A factory function to create the state
 */
export declare function createGlobalState<Fn extends AnyFn>(
  stateFactory: Fn,
): Fn

Source

Source • Demo • Docs

Contributors

jorshen

Changelog

No recent changes