toRef

分类

响应性

导出大小

181 B

上次更改

2 个月前

别名

resolveRef

将 value/ref/getter 规范化为 ref 或 computed。

用法

import { toRef
 } from '@vueuse/core'

const foo
 = ref
('hi')

const a
 = toRef
(0) // Ref<number>
const b
 = toRef
(foo
) // Ref<string>
const c
 = toRef
(() => 'hi') // ComputedRef<string>

类型声明

/**
 * Normalize value/ref/getter to `ref` or `computed`.
 */
export declare function toRef
<T
>(r
: () => T
): Readonly
<Ref
<T
>>
export declare function toRef
<T
>(r
: ComputedRef
<T
>): ComputedRef
<T
>
export declare function toRef
<T
>(r
: MaybeRefOrGetter
<T
>): Ref
<T
>
export declare function toRef
<T
>(r
: T
): Ref
<T
>
export declare function toRef
<T
 extends object, K
 extends keyof T
>(
  object
: T
,
  key
: K
,
): ToRef
<T
[K
]>
export declare function toRef
<T
 extends object, K
 extends keyof T
>(
  object
: T
,
  key
: K
,
  defaultValue
: T
[K
],
): ToRef
<Exclude
<T
[K
], undefined>>