消息未定义，我不支持它答案

【问题标题】：message is not defined, i dont get behind it消息未定义，我不支持它
【发布时间】：2020-07-29 14:48:44
【问题描述】：

所以我无法理解如何定义消息，我已经搜索了很多并尝试了一些东西，但它不会工作。我是初学者，所以我可能只是忘记了我必须在哪里或如何做。

client.on("guildMemberAdd", async member => {
        try {
        await member.send(`Hello ${member}, welcome to the PotatoHost Server! 
I want to help you and so my question is: Do you want to buy a server or do you need more informations first? \n
A: I want to buy a server
B: I need more informations first \n
Please react to this message with A or B.`)
            .then(function (message) {
                message.react("????")
                message.react("????")
            });

            message.awaitReactions((reaction, user) => user.id == message.author.id && (reaction.emoji.name == '????' || reaction.emoji.name == '????'),
                { max: 1}).then(collected => {
                    if (collected.first().emoji.name == '????') {
                        message.reply('Ok, so you want to buy a server. Let me recommend you to visit <#699374469977735208>.');
                        client.destroy();

                    }
                    else
                    message.reply('Ok, so you need more informations first. Let me recommend you to visit <#699374469977735208>.');
                })

        } catch (err) {
            console.log(err)
        }
    })

 client.login(token);

【问题讨论】：

标签： javascript bots discord.js message

【解决方案1】：

我不确定，但为什么你不在消息范围内移动消息？

client.on("guildMemberAdd", async member => {
        try {
        await member.send(`Hello ${member}, welcome to the PotatoHost Server! 
I want to help you and so my question is: Do you want to buy a server or do you need more informations first? \n
A: I want to buy a server
B: I need more informations first \n
Please react to this message with A or B.`)
            .then(function (message) {
                message.react("?")
                message.react("?")
            message.awaitReactions((reaction, user) => user.id == message.author.id && (reaction.emoji.name == '?' || reaction.emoji.name == '?'),
                { max: 1}).then(collected => {
                    if (collected.first().emoji.name == '?') {
                        message.reply('Ok, so you want to buy a server. Let me recommend you to visit <#699374469977735208>.');
                        client.destroy();

                    }
                    else
                    message.reply('Ok, so you need more informations first. Let me recommend you to visit <#699374469977735208>.');
                })

            });


        } catch (err) {
            console.log(err)
        }
    })

 client.login(token);

【讨论】：

【解决方案2】：

message 仅在您的第一个 .then 函数的回调中定义。在不再定义它之后，您再次调用了message。将所有调用转移到 .then 内的消息以解决此问题。

.then(function (message) {
    message.react("?")
    message.react("?")
    message.awaitReactions((reaction, user) => user.id == message.author.id && 
        (reaction.emoji.name == '?' || reaction.emoji.name == '?'),
        { max: 1}).then(collected => {
        if (collected.first().emoji.name == '?') {
            message.reply('Ok, so you want to buy a server. Let me recommend you to visit <#699374469977735208>.');
             client.destroy();
        } else
            message.reply('Ok, so you need more informations first. Let me recommend you to visit <#699374469977735208>.');
    })
});

您可能想阅读范围：https://www.w3schools.com/js/js_scope.asp

【讨论】：