loader.js

const { glob } = require("glob");
const { promisify } = require("util");
const globPromise = promisify(glob);
const path = require("path"); // Path
const fs = require("fs"); // File System
const { Client, GatewayIntentBits, Partials, Collection, Discord } = require("discord.js"); // Discord.js V14
const config = require("./config.js"); // Config

  module.exports = function(client) {
    client.discord = Discord;
    client.commands = new Collection();
    client.slashCommands = new Collection();


    client.on("interactionCreate", async (interaction) => {
        if (interaction.isCommand()) {
            const command = client.slashCommands.get(interaction.commandName);
            if (!command) return interaction.followUp({ content: 'an Erorr' });

            const args = [];

            for (let option of interaction.options.data) {
            if (option.type === 'SUB_COMMAND') {
                if (option.name) args.push(option.name);
                option.options?.forEach(x =>  {
                    if (x.value) args.push(x.value);
                });
            } else if (option.value) args.push(option.value);
            } try {
            command.run(client, interaction, config)
            } catch (e) {
            interaction.followUp({ content: e.message });
            }
        }
    });

    handler(client);
    async function handler(client) {
    const slashCommands = await globPromise(
        `${process.cwd()}/commands/*.js`
    );

    const arrayOfSlashCommands = [];
        slashCommands.map((value) => {
            const file = require(value);
            if (!file.name) return;
            client.slashCommands.set(file.name, file);
            arrayOfSlashCommands.push(file);
        });
        client.on("ready", async () => {
            await client.application.commands.set(arrayOfSlashCommands).catch(console.error);
        });
    }
}