Reaction Delete channel | Discord.js

Question

I am making a ticket system with discord.js

I tried to when a member reacts to the message with the emoji, the ticket will close, but after running it, it shows an error

if (reaction.emoji.name == '🔒') {
    if(!reaction.channel.name.includes("ticket")) return;
    channel.delete()
}

Answer 1

Even though you didn't specify the error I can see that you never defined "channel". If you want to delete the channel in which the reaction was added use:

reaction.message.channel.delete();