bot.on("guildMemberAdd", async member => {
  let welcomeChannel = member.guild.channels.find(`name`, "welcome");
  if(!welcomeChannel) return;
  welcomeChannel.send(`Welcome ${member} to the server! Hope you have a great stay!`);
  // send a dm
  member.send("text text text").catch(O_o=>{ welcomeChannel.send("this user does not have dms enabled")});
});