refThrottled

参考值的节流变化。

¥Throttle changing of a ref value.

示例

source

Delay is set to 1000ms for this demo.

Throttled:

Times Updated: 0

Trailing: true

Leading: false

用法

¥Usage

import { refThrottled } from '@vueuse/core'

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

尾随

¥Trailing

如果你不想查看跟踪更改，请设置第三个参数 false（默认为 true）：

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

import { refThrottled } from '@vueuse/core'

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

领导

¥Leading

允许立即调用回调（在 ms 超时的前沿）。如果你不希望出现此行为，请设置第四个参数 false（默认为 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'

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

推荐阅读

¥Recommended Reading

• 去抖与油门：最终视觉指南

  ¥Debounce vs Throttle: Definitive Visual Guide

• 通过示例解释去抖和节流

  ¥Debouncing and Throttling Explained Through Examples

类型声明

/**
 * Throttle execution of a function. Especially useful for rate limiting
 * execution of handlers on events like resize and scroll.
 *
 * @param value Ref value to be watched with throttle effect
 * @param  delay  A zero-or-greater delay in milliseconds. For event callbacks, values around 100 or 250 (or even higher) are most useful.
 * @param [trailing] if true, update the value again after the delay time is up
 * @param [leading] if true, update the value on the leading edge of the ms timeout
 */
export declare function refThrottled<T>(
  value: Ref<T>,
  delay?: number,
  trailing?: boolean,
  leading?: boolean,
): Ref<T>
export { refThrottled as useThrottle, refThrottled as throttledRef }

源代码

源代码 • 示例 • 文档

变更日志

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