discord js delete message after time

JavaScript
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.*/);message.reply('Invalid command')
  .then(msg => {
    msg.delete(10000)
  })
Source

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