discord.js ban user by id code example

Example 1: discord.js get user by id

client.users.cache.find(user => user.id === 'USER-ID')

Example 2: Discord.js ban command

if (msg.member.hasPermission("BAN_MEMBERS")) {
    if (msg.members.mentions.first()) {
        try {
            msg.members.mentions.first().ban();
        } catch {
            msg.reply("I do not have permissions to ban" + msg.members.mentions.first());
        }
    } else {
        msg.reply("You do not have permissions to ban" + msg.members.mentions.first());
    }
}