refs.counter.i }, (val) => { alert('App $watch $refs.counter.i: ' + ... is because if the ref changes, the watcher will lose track of it. ... <看更多>
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refs.counter.i }, (val) => { alert('App $watch $refs.counter.i: ' + ... is because if the ref changes, the watcher will lose track of it. ... <看更多>
Since refs don't work reactively anymore, we now need to use $emit to inform the parent of changes. However, these emits are handled by methods, ... ... <看更多>
在Vue 3 中,可以透過 reactive 方法建立響應式物件,或者透過 ref 方法建立 ... import { watch } form 'vue'; // 監聽一個getter 函式const state ... ... <看更多>
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