Question

我正在尝试编写一个机器人，该机器人会在有人加入语音通道时发送一条消息。代码和错误如下。

const Discord = require("discord.js");
const config = require("./config.json");

const bot = new Discord.Client();

bot.login(config.BOT_TOKEN);

bot.once('ready', () => {
    console.log(`Bot ready, logged in as ${bot.user.tag}!`);
})

bot.on('voiceStateUpdate', (oldMember, newMember) => {
    const newUserChannel = newMember.voice.channelID
    const oldUserChannel = oldMember.voice.channelID
    const textChannel = message.guild.channels.cache.get('766783720312537089')

    if (newUserChannel === '764231813248843806') {
        textChannel.send(`${newMember.user.username} (${newMember.id}) has joined the channel`)
    } else if (oldUserChannel === '764231813248843806' && newUserChannel !== '764231813248843806') {
        textChannel.send(`${newMember.user.username} (${newMember.id}) has left the channel`)
    }
})

错误：

TypeError: Cannot read property 'channelID' of undefined

Answer 1

这很容易解决。问题是voiceStateUpdate确实有两个变量，但是它们不是oldMember, newMember而是oldState, newState。

与函数一样，您实际上对它们的称呼并不重要，但是使用oldState, newState更有意义，因为它们是voiceState。因此，它们没有voice属性。

因此，要解决此问题，您所要做的就是使用正确的voiceState属性。

const newUserChannel = newState.channelID;
const oldUserChannel = oldState.channelID;

注意：newState.user也不是问题，但是它确实为您提供了member对象，因此我建议您改用它。

编辑：您的整个代码应该看起来像这样。

bot.on('voiceStateUpdate', (oldState, newState) => {
    const newUserChannel = newState.channelID;
    const oldUserChannel = oldState.channelID;
    const textChannel = newState.guild.channels.cache.get('766783720312537089');
    
    if (newUserChannel === '764231813248843806') {
        textChannel.send(`${newState.member.user.username} (${newState.id}) has joined the channel`)
    } else if (oldUserChannel === '764231813248843806' && newUserChannel !== '764231813248843806') {
        textChannel.send(`${newState.member.user.username} (${newState.id}) has left the channel`)
    }

});

Discord.js无法读取属性

1 个答案: