discord.js list all my bot commands

问题

i made a discord bot with discord.js and tried to do a help command to show the user all available commands.

example command: avatar.js

module.exports.run = async(bot, message, args) => {
    let msg = await message.channel.send("doing some magic ...");
    let target = message.mentions.users.first() || message.author;

    await message.channel.send({files: [
        {
            attachment: target.displayAvatarURL,
            name: "avatar.png"
        }
    ]});

    msg.delete();
}

module.exports.help = {
    name: "avatar",
    description: "show the avatar of a user",
    usage: "[@user]"
}

Then i tried to send a message with the complete list of the commands like:

command 1
description
usage
command 2
description
usage
...

help.js

const fs = require("fs");
const Discord = require("discord.js");

module.exports.run = async(bot, message, args, con) => {
    fs.readdir("./cmds/", (err, files) => {
        if(err) console.error(err);

        let jsfiles = files.filter(f => f.split(".").pop() === "js");
        if(jsfiles.length <= 0) {
            console.log("No commands to load!");
            return;
        }

        var namelist = "";
        var desclist = "";
        var usage = "";

        let result = jsfiles.forEach((f, i) => {
            let props = require(`./${f}`);
            namelist = props.help.name;
            desclist = props.help.description;
            usage = props.help.usage;
        });

        message.author.send(`**${namelist}** \n${desclist} \n${usage}`);
    });
}

module.exports.help = {
    name: "help",
    description: "show all commands",
    usage: ""
}

my code is kinda working but it only sends the first command.

Im pretty new to javascript and i can't find a solution to this. I tried to google everything on foreach maps discord collections and stuff but i cant find a example where the results get combined together.

If anybody can help me or give me a hint where i can search for something like this. Would be awesome.

回答1:

The reason your code is only sending the one command is because your code only calls message.author.send('...' once. You successfully set the variables namelist, desclist, and usage with data from every file, but your .forEach(... loop just overwrites all of the data when it moves to the next files.

Try to send data inside each iteration of the .forEach(... loop like this:

var namelist = "";
var desclist = "";
var usage = "";

let result = jsfiles.forEach((f, i) => {
    let props = require(`./${f}`);
    namelist = props.help.name;
    desclist = props.help.description;
    usage = props.help.usage;

    // send help text
    message.author.send(`**${namelist}** \n${desclist} \n${usage}`);
});

回答2:

you should do this in an Array and it'll solve the problem, so it should look like this.

module.exports.run = async(bot, message, args, con) => {
    fs.readdir("./cmds/", (err, files) => {
        if(err) console.error(err);

        let jsfiles = files.filter(f => f.split(".").pop() === "js");
        if(jsfiles.length <= 0) {
            console.log("No commands to load!");
            return;
        }


        let result = jsfiles.forEach((f, i) => {
            let props = require(`./${f}`);
            let filesArray = [props.help.name, props.help.description, props.help.usage]
            message.author.send(`**${filesArray[0]}** \n${filesArray[1]} \n${filesArray[2]}`);
        });

    });
}

sorry for the late response.

回答3:

Here is my take on this.... it works for me.

const Discord = require('discord.js'); 
const fs = require("fs");

module.exports = {
    name: 'help',
    description: 'Lists available commands',

    async run(client, message, args, con) {
        fs.readdir("./commands/", (err, files) => {
            if(err) console.error(err);
    
            let jsfiles = files.filter(f => f.split(".").pop() === "js");
            if(jsfiles.length <= 0) {
                console.log("No commands to load!");
                return;
            }
            
            var namelist = "";
            var desclist = "";
            
            let result = jsfiles.forEach((f, i) => {
                let props = require(`./${f}`);
                namelist = props.name;
                desclist = props.description;
                message.author.send(`**${namelist}** \n${desclist} \n`);
            });
     

     
        });
    }

来源：https://stackoverflow.com/questions/47875397/discord-js-list-all-my-bot-commands

标签

javascript

node.js

foreach

bots

discord.js