vue中父组件向子组件传递Object时，如何避免TypeError？

Question

父组件<father :data="data"></father> data() {      return {        data: {}      } } mounted() {   this.data = {     title: '标题'   } } 子组件 <son>{{data.title}}<son>  props: {  data: Object,}报错: title属性 undefined

Answer 1

<son v-if="data">{{data.title}}<son>