Javascript Discord.js/Node.js-await仅在异步函数中有效

为什么会这样

 try {
            var connection = await voiceChannel.join();
          } catch (error) {
            console.error(`I could not join to the voice channel: ${error}`);
            return message.channel.send(`I could not join the voice channel: ${error}`);
          }

---

答案在错误消息中。不能在未声明为

async

的函数中使用

wait

语句

不正确：

function doSomething() {
  var result = await doSomethingElse()
}

正确：

async function doSomethingAsync() {
  var result = await doSomethingElse()
}

有关MDN异步函数的更多信息