vue3-eventbus

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```js import $EventBus from 'vue3-eventbus'; onMounted(()=>{ $EventBus.on('aaa',()=>{ // 一些方法 }) }) onBeforeUnmount(()=>{ $EventBus.off('aa'); // 这里不能取消订阅，只能采用具名函数的方式去取消； }) ``` > 上面的方法不能取消订阅，导致可能会多次触发订阅机制；

chengzhanpeng

mitt升级到3.x吧

1

[https://github.com/developit/mitt](url)

ue360

vue3-eventbus does not support TypeScript

2

Could not find a declaration file for module 'vue3-eventbus'. Try `npm i --save-dev @types/vue3-eventbus` if it exists or add a new declaration (.d.ts) file containing `declare module 'vue3-eventbus';`

habc0807

const MCDialogWrapRef = ref(null); bus.on("MCStatus-seeReason", ({ item, index }) => { console.log(item, index); console.log(MCDialogWrapRef, "dialogWrapRef-1"); reasonRejec.value = "拒绝了"; if (MCDialogWrapRef) MCDialogWrapRef.value.show = true; }); 获取不到爷爷组件的ref

LBC000