how to make a ping in discord.js
if(cmd === `${prefix}ping`) {
message.channel.send("Pinging...").then(m =>{
var ping = m.createdTimestamp - message.createdTimestamp;
var botPing = Math.round(bot.pi);
m.edit(`**:ping_pong: Pong! Your Ping Is:-**\n ${ping}ms`);
});
}