Question

我使用socket.io制作多人游戏，我遇到的问题是服务器返回的所有内容都包含在函数内部。我试图将数据返回到客户端的全局变量。

<script>
    let test = "no";
    let socket = io();
    socket.on('player',function(data){
        test =  data;
    });
    console.log(test); // says no instead of yes     
</script>

Answer 1

socket.on是异步调用，因此

<script>
    let test = "no";
    let socket = io();
    socket.on('player',function(data){
        test =  data;
        **console.log(test);**  //say yes and also return it here
    });
   // console.log(test); // says no instead of yes , will not work as async

</script>

Socket.io将数据发送到全局变量

1 个答案: