尝试通过 Discord 机器人删除所有频道时出现错误

Question

I was making a purge command delete all channels and ended up running into the error:

C:\Users\zaned\Desktop\bot\main.js:13
    message.guild.channels.forEach(channel => channel.delete())
    ^

ReferenceError: message is not defined
    at Client.<anonymous> (C:\Users\zaned\Desktop\bot\main.js:13:5)
    at Client.emit (node:events:390:28)
    at MessageCreateAction.handle (C:\Users\zaned\node_modules\discord.js\src\client\actions\MessageCreate.js:25:14)
    at Object.module.exports [as MESSAGE_CREATE] (C:\Users\zaned\node_modules\discord.js\src\client\websocket\handlers\MESSAGE_CREATE.js:4:32)
    at WebSocketManager.handlePacket (C:\Users\zaned\node_modules\discord.js\src\client\websocket\WebSocketManager.js:350:31)
    at WebSocketShard.onPacket (C:\Users\zaned\node_modules\discord.js\src\client\websocket\WebSocketShard.js:443:22)
    at WebSocketShard.onMessage (C:\Users\zaned\node_modules\discord.js\src\client\websocket\WebSocketShard.js:300:10)
    at WebSocket.onMessage (C:\Users\zaned\node_modules\ws\lib\event-target.js:199:18)
    at WebSocket.emit (node:events:390:28)
    at Receiver.receiverOnMessage (C:\Users\zaned\node_modules\ws\lib\websocket.js:1022:20)

Here's my code:

const { Client, Intents } = require('discord.js');
const client = new Client({ intents: [Intents.FLAGS.GUILDS, Intents.FLAGS.GUILD_MESSAGES] });

client.on("ready", () => {
  console.log(`Logged in as ${client.user.tag}!`)
})

client.on("messageCreate", (msg) => {
  if (msg.content === "!test") {
    msg.reply("Hello world!");
  }
  if (msg.content === "!purgec") {
    message.guild.channels.forEach(channel => channel.delete())
    msg.reply("Deleting all channels...");
  }
})

Can somebody please help me with this?

Answer 1

This can easily get your bot rate limited and it is dangerously close to being a "nuking" bot which in some instances can be considered API abuse and get your Discord account and bot banned.

In your event callback the message variable is defined as msg and not message . Edit your code to reflect this.

Along with this the GuildChannelManager class doesnt have a #forEach function, for this you need to cache the channels.

client.on("messageCreate", (msg) => {
  if (msg.content === "!test") {
    msg.reply("Hello world!");
  }
  if (msg.content === "!purgec") {
    msg.guild.channels.cache.forEach(channel => channel.delete())
    msg.reply("Deleting all channels...");
  }
})

Another potential future bug is: If you've deleted every channel how will the bot reply to the message on the last line?