Vue version

latest

Link to minimal reproduction

https://play.vuejs.org/#__DEV__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

Steps to reproduce

use withDefaults

What is expected?

disabled this warning

What is actually happening?

I knew that withDefaults will set a default value in runtime, but it still appear a warning

System Info

No response

Any additional comments?

No response

- age: number
+ age?: number

This is as expected

withDefaults(defineProps<{
    age: number
}>(), {
    age: 1
})

Equivalent to

export default {
  props: {
    age: {
      type: Number,
      required: true,
      default: 1
    }
  }
}

When a props is required to be passed in, it means that it needs to be passed to the component anyway, whether it has a default value or not