Question

我的不和谐机器人正在处理帮助命令。帮助命令访问的我的命令列表文件是：

{
    "Help": {
        "name":"Help",
        "group":"User",
        "desc":"Displays a list of commands",
        "usage":"help [group OR command]"
    },

    "Purge": {
        "name":"Purge",
        "group":"Admin",
        "desc":"Deletes a specified number of messages",
        "usage":"Purge <amount>"
    }
}

这些只是定义命令的组，名称和用法。到目前为止，帮助命令的代码为：

const Discord = require('discord.js');
const bot = new Discord.Client();
const client = new Discord.Client();
const weather = require('weather-js');
const fs = require('fs');
const commands = JSON.parse(fs.readFileSync('Storage/commands.json', 'utf8'))
const token = "<my token>"
const prefix = 'cb!';

bot.on('message', message => {

    // Variables
    let msg = message.content.toUpperCase();
    let sender = message.author;
    let cont = message.content.slice(prefix.length).split(" ");
    let args = cont.shift().toLowerCase();

    if (message.content.startsWith(prefix+'help')) {

            console.log('ok i hate this')

            const embed = new Discord.RichEmbed()
                .setColor(0x1D82B6)



            let commandsFound = 0;

            for (var cmd in commands) {

                if (commands[cmd].group.toUpperCase() === 'USER') {
                    commandsFound++

                    embed.addField(`${commands[cmd].name}`, `**Description:** ${commands[cmd].desc}\n**Usage:** ${prefix + commands[cmd].usage}`);
                }


            }

            embed.setFooter(`Currently showing user commands. To view another group do ${prefix}help [group / command]`)
            embed.setDescription(`**${commandsFound} commands found** - <> means required, [] means optional`)

            message.author.send({embed})
            message.channel.send({embed: {
                color: 0x1D82B6,
                description: `**Check your DMs ${message.author}!**`
            }})

            } else {
                // Variables
                let groupFound = '';

                for (var cmd in commands) {

                    if (args.join(" ").trim().toUpperCase() === commands[cmd].group.toUpperCase()) {
                        groupFound = commands[cmd].group.toUpperCase();
                        break;
                    }

                }

                if (groupFound != '') {
                    for (var cmd in commands) {

                        const embed = new Discord.RichEmbed()
                        .setColor(0x1D82B6)



                        let commandsFound = 0;

                        if (commands[cmd].group.toUpperCase() === groupFound) {
                            commandsFound++

                            embed.addField(`${commands[cmd].name}`, `**Description:** ${commands[cmd].desc}\n**Usage:** ${prefix + commands[cmd].usage}`);
                        }


                    }

                    embed.setFooter(`Currently showing ${groupFound} commands. To view another group do ${prefix}help [group / command]`)
                    embed.setDescription(`**${commandsFound} commands found** - <> means required, [] means optional`)

                    message.author.send({embed})
                    message.channel.send({embed: {
                        color: 0x1D82B6,
                        description: `**Check your DMs ${message.author}!**`
                    }})

                }



    }

});

如果我键入“ cb！help admin”，我将在控制台中收到此错误

                    if (args.join(" ").trim().toUpperCase() === commands[cmd].group.toUpperCase()) {
                             ^

TypeError: args.join is not a function

该如何解决？我也尝试过if (args[0].join...，但这没用。

一如既往，感谢您抽出宝贵的时间阅读本文。我基于过时的代码，因此可能还有其他错误。我正在尝试全部修复它们。

Answer 1

args在您的代码示例中有一个定义：

let args = cont.shift().toLowerCase();

这使args string-string没有方法join()，因为join()是Array原型链的一部分，字符串不从中继承。 shift()将返回cont数组的第一个元素，因此您可能只想调用args.toUpperCase()，尽管我建议重命名变量以使args的含义正确更清晰。

Answer 2

您应该尝试在顶部交换两个变量，这样

let args = message.content.slice(prefix.length).split(' ');
let cont = args.shift().toLowerCase();

然后将args放入if语句中

if (args[0].toUpperCase === commands[cmd].group.toUpperCase) { /* Your code... */ }

您的args已经存储在数组中，因此不需要修剪它们，因此也不需要join函数。

希望这会有所帮助！

Discord帮助命令-args.join不是函数

2 个答案: