当vue页面异步加载的数据想在页面上渲染怎么办

<template>
  <div class="test">

    <div v-for="(item, index) in arr" :key="index">
      <p>姓名：{{ item.name }}</p>
      <p>年龄：{{ item.age }}</p>
      <p>爱好：{{ item.like }}</p>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {

      arr: [{ name: "蕾蕾", age: 23 }, { name: "佳佳", age: 20 }]
    };
  },
  created() {
    this.arr.foreach(res => {
      settimeout(()=>{   //此处模拟异步调数据
        res.like = "刷抖音";
      })

    });
  }
  }
};
</script>

此时页面是渲染不出来爱好的数据的，如图：

 

 

 处理方法：数组改变用push

 

 

 

 

 data() {
    return {
      arr: [{ name: "蕾蕾", age: 23 }, { name: "佳佳", age: 20 }]
    };
  },

 created() {
    this.arr.foreach(res => {

          this.arr=[]
          settimeout(()=>{
            res.like = "刷抖音";
            this.arr.push(res);
         })

    });
  }