How to issue a role on command?

Question

Node.js

I need to write a code to issue a role on a specific command, please help

Answer 1

Well, let's say the command structure looks like !role [упоминание].
The ID of the role to be issued is 123456789012345678 (RMB on the role and "Copy ID", I think you know)

message.guild.members.get(message.author.id).addRole('123456789012345678');

We just got the guild member (not the user) by the ID of the author of the message and gave him a role.
Next (via mention)

user = message.content.split(' ')[1];
//далее 2 способа
//первый
message.guild.members.get(message.mentions.first()).addRole('123456789012345678');
//второй
if (user.includes('!')) user = user.slice(3, -1);
else user = user.slice(2, -1);
message.guild.members.get(user).addRole('123456789012345678');