【Vue3】reactive对象类型的响应式数据

文章目录

• reactive简介

---

reactive简介

• 用法: let xx = reactive({xxx:"xxx"})
• 返回值: 一个Proxy的对象，就是响应式对象
• 特别注意:
  • 数组也属于对象范畴，所以也能使用reactive，使其变成响应式数据
  • reactive修改值时，不需要在值后写.value

代码展示:

<div>
            <div>
                <span>游戏名:{{gameDetail.name}}</span>
                <span>版本号:{{gameDetail.version}}</span>
                <span>大小:{{gameDetail.size}}</span>
            </div>
            <div>
                <button @click="handleChangeGamesDetail">修改内容</button>
            </div>
            <div>
                <ul>
                    <li v-for="(item,index) in games" :key="index">
                        <div>
                            <span>游戏名:{{item.name}}</span>
                            <span>版本号:{{item.version}}</span>
                            <span>大小:{{item.size}}</span>
                        </div>
                    </li>
                </ul>
            </div>
            <div>
                <button @click="handleChangeGames">修改游戏</button>
            </div>
        </div>
</template>
<script setup lang="ts" name="item">
let gameDetail = reactive({
        name:"王者荣耀",version:"1.0",size:"1gb"
    })
    let games = reactive([
        {
            name:"王者荣耀",version:"1.0",size:"1gb"
        },
        {
            name:"星际争霸",version:"2.0",size:"2gb"
        },
        {
            name:"魔兽争霸",version:"3.0",size:"3gb"
        }
    ])
    const handleChangeGamesDetail = ()=>{
        gameDetail.name = "远梦之星"
    }
    const handleChangeGames = ()=>{
        games[0].name = "修改游戏名"
    }

</script>