Vue中关于异步请求数据未更新的解决

this.data[index] = newValue; // Vue 无法检测到数组索引的直接修改
this.obj.newProperty = newValue; // Vue 无法检测到对象的动态属性

async fetchData() {
  const response = await fetch('/api/data');
  const data = await response.json();
  this.data = data; // 状态更新未正确触发
}

this.$set(this.data, index, newValue); // 更新数组
this.$set(this.obj, 'newProperty', newValue); // 更新对象

async fetchData() {
  try {
    const response = await fetch('/api/data');
    const data = await response.json();
    this.data = data; // 确保状态更新
  } catch (error) {
    console.error('Failed to fetch data:', error);
  }
}

<template>
  <div v-if="data">
    {{ data }}
  </div>
</template>

<script>
export default {
  data() {
    return {
      data: null
    };
  },
  async mounted() {
    await this.fetchData();
  },
  methods: {
    async fetchData() {
      const response = await fetch('/api/data');
      const data = await response.json();
      this.data = data;
    }
  }
};
</script>

async fetchData() {
  const response = await fetch(`/api/data?timestamp=${Date.now()}`);
  const data = await response.json();
  this.data = data;
}

async fetchData() {
  const [data1, data2] = await Promise.all([
    fetch('/api/data1').then(response => response.json()),
    fetch('/api/data2').then(response => response.json())
  ]);

  this.data1 = data1;
  this.data2 = data2;
}