Answers for "detect user by id even if he isnt in server discordjs"

how to check if the user is in a certain guild in discord

const server = client.guilds.cache.get(server_id)
if (server.members.cache.find(user_id)) //Returns true if present in the guild
else //and false if not

check user by id discord js

if(!message.author.id ==`329023088517971969` || !message.member.hasPermission(['MANAGE_GUILD'])) return message.channel.send(`You don't have the permissions to do this!`)
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