TypeError: Cannot read properties of undefined (reading 'name') discord.js [closed]

Question

I'm learning discord.js and I'm trying to follow this tutorial on discordjs.guide, but this error occurs:

client.commands.set(command.data.name, command);
                                 ^

TypeError: Cannot read properties of undefined (reading 'name')

index.js code on the errored part:

const fs = require('node:fs');
const client = new Discord.Client({ intents: 32767 });
client.commands = new Collection();
const commandFiles = fs.readdirSync('./commands').filter(file => file.endsWith('.ts'));

for (const file of commandFiles) {
    const command = require(`./commands/${file}`);
    client.commands.set(command.data.name, command); // errored part
}

If you need more code, please tell it to me.

Answer 1

delete the data on your code line

client.commands.set(command.name, command); //this will set your command name

Edit: I didn't recognize the .ts but I'm sure it's the same properties with .js