Password prompt

In many cases, it is highly undesirable to include a hard-coded password in a Mongo script. Starting with MongoDB 4.2, in place of a hard-coded password value, you can substitute a built-in JavaScript function passwordPrompt(). You can refer to https://docs.mongodb.com/master/reference/method/passwordPrompt/#passwordPrompt for more details on the function. This causes the Mongo shell to pause and wait for manual user input before proceeding. The password that is entered is then used as the password value.