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watchOnce

使用 { once: true } 观察值的简写。回调触发一次后,监视器将停止。有关完整详细信息,请参阅 Vue 文档

¥Shorthand for watching value with { once: true }. Once the callback fires once, the watcher will be stopped. See Vue's docs for full details.

用法

¥Usage

watch 类似,但与 { once: true } 相同

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

ts
import { 
watchOnce
} from '@vueuse/core'
watchOnce
(source, () => {
// triggers only once
console
.
log
('source changed!')
})