How to find user by their id in discord.js

Question

I want my bot to be able to give specific roles to specific users declared with their id. I tried:

const user = bot.users.cache.get(args[2]);
user.roles.add("[role ID]");

Answer 1

If you already have the user's ID, you can fetch the user object using the following code:

const client = new Discord.Client();
let thanos = client.users.fetch('IDHERE');
thanos.then(function(result1) {
    //put your code that uses the result1 (the user object) here
    //for example, you could do var imgURL = result1.displayAvatarURL();
});