VueUse中文文档useMutationObserver
监听DOM树修改 MutationObserver MDN
Watch for changes being made to the DOM tree. MutationObserver MDN
例子
Usage
ts
import { ref } from 'vue'
import { useMutationObserver } from '@vueuse/core'
export default {
setup() {
const el = ref(null)
const messages = ref([])
useMutationObserver(el, (mutations) => {
if (mutations[0])
messages.value.push(mutations[0].attributeName)
}, {
attributes: true,
})
return {
el,
messages,
}
},
}
import { ref } from 'vue'
import { useMutationObserver } from '@vueuse/core'
export default {
setup() {
const el = ref(null)
const messages = ref([])
useMutationObserver(el, (mutations) => {
if (mutations[0])
messages.value.push(mutations[0].attributeName)
}, {
attributes: true,
})
return {
el,
messages,
}
},
}
Type Declarations
typescript
export interface UseMutationObserverOptions
extends MutationObserverInit,
ConfigurableWindow {}
/**
* Watch for changes being made to the DOM tree.
*
* @see https://vueuse.org/useMutationObserver
* @see https://developer.mozilla.org/zh-CN/docs/Web/API/MutationObserver MutationObserver MDN
* @param target
* @param callback
* @param options
*/
export declare function useMutationObserver(
target: MaybeElementRef,
callback: MutationCallback,
options?: UseMutationObserverOptions
): {
isSupported: Ref<boolean>
stop: () => void
}
export type UseMutationObserverReturn = ReturnType<typeof useMutationObserver>
export interface UseMutationObserverOptions
extends MutationObserverInit,
ConfigurableWindow {}
/**
* Watch for changes being made to the DOM tree.
*
* @see https://vueuse.org/useMutationObserver
* @see https://developer.mozilla.org/zh-CN/docs/Web/API/MutationObserver MutationObserver MDN
* @param target
* @param callback
* @param options
*/
export declare function useMutationObserver(
target: MaybeElementRef,
callback: MutationCallback,
options?: UseMutationObserverOptions
): {
isSupported: Ref<boolean>
stop: () => void
}
export type UseMutationObserverReturn = ReturnType<typeof useMutationObserver>