watchDeep

カテゴリ

監視

エクスポートサイズ

325 B

最終更新日

先週

{deep: true} を使用して値を監視するための簡略記法です。

使用方法

watch と似ていますが、{ deep: true } が使用されます。

import { watchDeep } from '@vueuse/core'

const nestedObject = ref({ foo: { bar: { deep: 5 } } })

watchDeep(nestedObject, (updated) => {
  console.log(updated)
})

onMounted(() => {
  nestedObject.value.foo.bar.deep = 10
})

型宣言

typescript

export declare function watchDeep<
  T extends Readonly<WatchSource<unknown>[]>,
  Immediate extends Readonly<boolean> = false,
>(
  source: [...T],
  cb: WatchCallback<MapSources<T>, MapOldSources<T, Immediate>>,
  options?: Omit<WatchOptions<Immediate>, "deep">,
): WatchStopHandle
export declare function watchDeep<
  T,
  Immediate extends Readonly<boolean> = false,
>(
  source: WatchSource<T>,
  cb: WatchCallback<T, Immediate extends true ? T | undefined : T>,
  options?: Omit<WatchOptions<Immediate>, "deep">,
): WatchStopHandle
export declare function watchDeep<
  T extends object,
  Immediate extends Readonly<boolean> = false,
>(
  source: T,
  cb: WatchCallback<T, Immediate extends true ? T | undefined : T>,
  options?: Omit<WatchOptions<Immediate>, "deep">,
): WatchStopHandle