client.on('message', message => {
  var prefix = "#"
        if(message.content.startsWith(prefix + 'hypixel')) {
            let args = message.content.split(' ').slice(1).join(' ');
            if (!args) return message.channel.send("**Please provide a Minecraft username. ❌**");
            var link = (`https://hypixel.net/player/${args}`);
            message.channel.send(link);
        }
    });