Ping Code

client.on('message', async msg =>{
    var prefix = '$';//Prefix
    if (msg.author.bot) return undefined;
    if (!msg.content.startsWith(prefix)) return undefined;

    let args = msg.content.split(' ');

    let command = msg.content.toLowerCase().split(" ")[0];
    command = command.slice(prefix.length)

    if(command === `ping`) {
    let embed = new Discord.RichEmbed()
    .setColor('RANDOM')
    .setTitle("Ping Pong!!")
    .setDescription(`${client.ping} ms`)
    .setFooter(`${msg.author.tag}`);
    msg.delete().catch(O_o=>{})
    msg.channel.send(embed);
    }
});