refThrottled

类别

Reactivity

导出大小

536 B

示例

源代码在线运行

Delay is set to 1000ms for this demo.

Throttled:

Times Updated: 0

Trailing: true

Leading: false

用法

🌐 Usage

import { refThrottled
 } from '@vueuse/core'
import { shallowRef
 } from 'vue'

const input
 = shallowRef
('')
const throttled
 = refThrottled
(input
, 1000)

一个使用对象引用的示例。

🌐 An example with object ref.

import { refThrottled } from '@vueuse/core'
import { shallowRef } from 'vue'

const data = shallowRef({
  count: 0,
  name: 'foo',
})
const throttled = refThrottled(data, 1000)

data.value = { count: 1, name: 'foo' }
console.log(throttled.value) // { count: 1, name: 'foo' } (immediate)

data.value = { count: 2, name: 'bar' }
data.value = { count: 3, name: 'baz' }
data.value = { count: 4, name: 'qux' }
console.log(throttled.value) // { count: 1, name: 'foo' } (still first value)

// After 1000ms, next change will be applied
await sleep(1100)
data.value = { count: 5, name: 'final' }
await nextTick()
console.log(throttled.value) // { count: 5, name: 'final' } (updated)

尾随

🌐 Trailing

如果你不想查看后续的更改，请设置第3个参数 false（默认是 true）:

🌐 If you don't want to watch trailing changes, set 3rd param false (it's true by default):

import { refThrottled
 } from '@vueuse/core'
import { shallowRef
 } from 'vue'

const input
 = shallowRef
('')
const throttled
 = refThrottled
(input
, 1000, false)

领导

🌐 Leading

允许回调立即被调用（在 ms 超时的开始时刻）。如果你不希望这种行为，请设置第四个参数 false（默认是 true）：

🌐 Allows the callback to be invoked immediately (on the leading edge of the ms timeout). If you don't want this behavior, set the 4th param false (it's true by default):

import { refThrottled
 } from '@vueuse/core'
import { shallowRef
 } from 'vue'

const input
 = shallowRef
('')
const throttled
 = refThrottled
(input
, 1000, undefined
, false)

refThrottled ​

示例 ​

用法 ​

尾随 ​

领导 ​

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refThrottled

示例

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领导

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