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javascript - bio[message.author.id].join(" ") 不是函数

问题描述

自从我上一个问题以来，我一直在尝试让它工作，但是当我profile通过更新的命令成功获取过去的 Bio 后尝试执行命令时，现在会出现错误setBio：

bio[message.author.id].join is not a function

我已经开始意识到这个问题，但我不知道如何正确解决它。

以下是发生错误的代码：

case 'setBio':
        if(!bio[message.author.id]) {
        let messages = message.channel.messages;
                let authorMessages = messages.filter(m => m.author.id === message.author.id);
                let setBioCommands = authorMessages.filter(m => m.content.startsWith('!setBio'));
                let firstBio = setBioCommands.last();
                message.channel.send('I found a Bio you have previously set. Do you want to confirm the change to that Bio?').then(r => r.delete(10000));
            message.react('✅').then(() => message.react('❎'));
        const filter = (reaction, user) => {
                return ['✅', '❎'].includes(reaction.emoji.name) && user.id === message.author.id;
                };
                message.awaitReactions(filter, { max: 1, time: 10000, errors: ['time'] })
                    .then(collected => {
                        const reaction = collected.first();

                        if (reaction.emoji.name === '✅') {
                            bio[message.author.id] = firstBio
                message.reply('Past Bio successfully restored!')
                .then(msg => msg.delete(3000));
                        }
                        else {
                            message.reply('Okey, I\'ll delete this Bio.')
                .then(msg => msg.delete(3000)); 
                        }
                    })
                    .catch(collected => {
                        message.channel.send('You didn\'t respond, so I\'ll throw this Bio into the abyss. *Buh-bye!*');
                    });
        } else {
        let newArr = args.slice(1)
        bio[message.author.id] = newArr
        message.channel.send('Your bio has been changed!')
            .then(msg => msg.delete(3000)); 
        }
        break;
        case 'profile':
        if(!bio[message.author.id]) {
        return message.channel.send('Sorry, please set a bio with `!setBio` to view your profile!')
        .then(msg => msg.delete(3000)); 
        } else {
        const embed = new Discord.RichEmbed()
            .setTitle('__' + message.author.username + '\'s Profile__')
            .addField(`Bio:`, bio[message.author.id].join(" ")) /// this is where the error is
            .setColor(message.member.colorRole.color)
            .setThumbnail(message.author.avatarURL)
            message.channel.send(embed);
        }
        break;

标签： javascriptgithubherokudiscord.js

解决方案

该错误告诉您bio[message.author.id]没有.join()方法。.join()通常用于具有这种方法的数组。您可能期望bio[message.author.id]成为一个数组，但它可能是其他对象。

尝试记录bio[message.author.id]以更好地了解后台发生的事情（调试过程），然后从那里继续。

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