bot discordjs only deleting one 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: delete message discord.js

message.delete()