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use Partial in defineProps, $props lose type #11733

@Kanade-Lu

Description

@Kanade-Lu

Vue version

3.4.38

Link to minimal reproduction

https://play.vuejs.org/#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

Steps to reproduce

use Partial<> and without use toRefs.

<script setup lang="ts">
import { ref, toRefs } from 'vue'

interface IGroupDetail {
    created_at: string;
}
const props = defineProps<{
    groupDetail: Partial<IGroupDetail>
}>()

// const { groupDetail } = toRefs(props) // Comment this code,groupDetail in template will unknown 

</script>

<template>
  <div>  {{ groupDetail?.created_at }}</div>
</template>

What is expected?

groupDetail type should be Partial

What is actually happening?

groupDetail type is unknown

System Info

No response

Any additional comments?

No response

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