"Collection is not defined"

[MrManBoi]

Every time I run index.js, an error shows up say "Collection is not defined", and I cant seem to fix it, can anyone help?

This is my index.js code:

// Require the necessary discord.js classes
const fs = require('node:fs');
const path = require('node:path');
const { Client, Events, GatewayIntentBits } = require('discord.js');
const { token } = require('./config.json');

// Create a new client instance
const client = new Client({ intents: [GatewayIntentBits.Guilds] });

client.commands = new Collection();
const commandsPath = path.join(__dirname, 'commands');
const commandFiles = fs.readdirSync(commandsPath).filter(file => file.endsWith('.js'));

for (const file of commandFiles) {
	const filePath = path.join(commandsPath, file);
	const command = require(filePath);
	// Set a new item in the Collection with the key as the command name and the value as the exported module
	if ('data' in command && 'execute' in command) {
		client.commands.set(command.data.name, command);
	}
	else {
		console.log(`[WARNING] The command at ${filePath} is missing a required "data" or "execute" property.`);
	}
}

// When the client is ready, run this code (only once)
// We use 'c' for the event parameter to keep it separate from the already defined 'client'
client.once(Events.ClientReady, c => {
	console.log(`Ready! Logged in as ${c.user.tag}`);
});

client.on(Events.InteractionCreate, async interaction => {
	if (!interaction.isChatInputCommand()) return;
	const command = interaction.client.commands.get(interaction.commandName);

	if (!command) {
		console.error(`No command matching ${interaction.commandName} was found.`);
		return;
	}

	try {
		await command.execute(interaction);
	}
	catch (error) {
		console.error(error);
		await interaction.reply({ content: 'There was an error while executing this command!', ephemeral: true });
	}
});

// Log in to Discord with your client's token
client.login(token);

This is the error that I get after running index.js:

"name" is a coverup for my actual name, LilJudBot is the name of my project directory

PS C:\Users\name\OneDrive\Desktop\LilJudBot> node index.js
C:\Users\name\OneDrive\Desktop\LilJudBot\index.js:10
client.commands = new Collection();
                      ^

ReferenceError: Collection is not defined
    at Object.<anonymous> (C:\Users\name\OneDrive\Desktop\LilJudBot\index.js:10:23)
    at Module._compile (node:internal/modules/cjs/loader:1159:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1213:10)
    at Module.load (node:internal/modules/cjs/loader:1037:32)
    at Module._load (node:internal/modules/cjs/loader:878:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:23:47

Node.js v18.12.1

Can anybody help? Thanks!

[almostSouji]

I would suggest reading the respective guide section where this is explained again, with a focus on imports.
https://discordjs.guide/creating-your-bot/command-handling.html#loading-command-files

[MrManBoi]

I would suggest reading the respective guide section where this is explained again, with a focus on imports. https://discordjs.guide/creating-your-bot/command-handling.html#loading-command-files

Are you referring to adding a .command property to the client instance? If so, What would the code change be? I'm really new to coding, and have no knowledge except for very basic C#.

[almostSouji]

the part that imports the Collection class before using it, predominantly

 const { Client, Collection, Events, GatewayIntentBits } = require('discord.js');

Collection is the relevant class for that error.