watchImmediate

{immediate: true} 监视值的简写

¥Shorthand for watching value with {immediate: true}

用法

¥Usage

与 watch 类似，但与 { immediate: true } 相同

¥Similar to watch, but with { immediate: true }

import { watchImmediate } from '@vueuse/core'

const obj = ref('vue-use')

// changing the value from some external store/composables
obj.value = 'VueUse'

watchImmediate(obj, (updated) => {
  console.log(updated) // Console.log will be logged twice
})

类型声明

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

源代码

源代码 • 文档

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