我如何在Discord.js中执行“ + mention”命令

Question

How do I create a discord command for my bot that will mention someone?

For ex:

Sample input: +mention Gamer222

Sample output: @Gamer222#6478

I have tried multiple things like:

if(command === "mention") {
   const sayMessage = args.join(" ");
   message.channel.send(`${sayMessage}`);
}

But it isn't working.

Answer 1

Answer previously posted on the question:

if (command === "mention") {
  const sayMessage = args.join(" ");
  message.channel.send(client.users.find('username', sayMessage).toString());
}

Answer 2

Or this :

if (command == "mention") {
   const sayMessage = message.mentions.users.first()
   if(!sayMessage) return message.channel.send("Please mention a user.")
   message.channel.send(`${sayMessage}`)
}