onElementRemoval

当元素或任何包含它的元素被删除时触发。

¥Fires when the element or any element containing it is removed.

示例

源代码演练场

demo1: recreate new element

removed times: 0

---

demo2: reuse same element

target element

removed times: 0

用法

¥Usage

<script setup lang="ts">
import { onElementRemoval } from '@vueuse/core'
import { shallowRef, useTemplateRef } from 'vue'

const btnRef = useTemplateRef<HTMLElement>('btn')
const btnState = shallowRef(true)
const removedCount = shallowRef(0)

function btnOnClick() {
  btnState.value = !btnState.value
}

onElementRemoval(btnRef, () => ++removedCount.value)
</script>

<template>
  <button
    v-if="btnState"
    @click="btnOnClick"
  >
    recreate me
  </button>
  <button
    v-else
    ref="btnRef"
    @click="btnOnClick"
  >
    remove me
  </button>
  <b>removed times: {{ removedCount }}</b>
</template>

类型声明

export interface OnElementRemovalOptions
  extends ConfigurableWindow,
    ConfigurableDocumentOrShadowRoot,
    WatchOptionsBase {}
/**
 * Fires when the element or any element containing it is removed.
 *
 * @param target
 * @param callback
 * @param options
 */
export declare function onElementRemoval(
  target: MaybeElementRef,
  callback: (mutationRecords: MutationRecord[]) => void,
  options?: OnElementRemovalOptions,
): Fn

源代码

源代码 • 示例 • 文档

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