message.reply('Invalid command')
.then(msg => {
msg.delete({ timeout: 20000 /*time unitl delete in milliseconds*/});
})
.catch(/*Your Error handling if the Message isn't returned, sent, etc.*/);client.on('messageDelete', (messageDelete) => {
//Your code
});
//Note, you have to define client.
//Its best to run these events through something called a "event handler"message.channel.send("Hello World!").then(msg=>msg.delete({timeout:"2000"/*Time until delete in milliseconds*/})message.delete()// ASSUMPTIONS:
// channel: the channel you want the message to be sent in
// lastmsg: the id of the last poll message
channel.fetchMessage(lastmsg).then(msg => msg.delete());