xiao/commands/search/discrim.js

const Command = require('../../structures/Command');
const { MessageEmbed } = require('discord.js');

module.exports = class DiscrimCommand extends Command {
	constructor(client) {
		super(client, {
			name: 'discrim',
			aliases: ['discriminator', 'search-discrim'],
			group: 'search',
			memberName: 'discrim',
			description: 'Searches for other users with a certain discriminator.',
			clientPermissions: ['EMBED_LINKS'],
			args: [
				{
					key: 'discrim',
					prompt: 'Which discriminator would you like to search for?',
					type: 'string',
					default: '',
					validate: discrim => {
						if (/[0-9]+$/g.test(discrim) && discrim.length === 4) return true;
						return 'Invalid Discriminator.';
					}
				}
			]
		});
	}

	run(msg, args) {
		const discrim = args.discrim || msg.author.discriminator;
		const users = this.client.users.filter(user => user.discriminator === discrim).map(user => user.username);
		const embed = new MessageEmbed()
			.setTitle(`${users.length} Users with the discriminator #${discrim}`)
			.setColor(0x9797FF)
			.setDescription(users.join(', '));
		return msg.embed(embed);
	}
};