discord.js bot delete message code example
Example 1: discord js delete message after time
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.*/);
Example 2: how to send a message then delete it discord.js
message.reply('Invalid command')
.then(msg => {
msg.delete(10000)
})