My deleteOne and updateOne functions say they are working but they don't actually work in node.js and MongoDB

I am using Node js and MongoDB. I have a Customer database that I am trying to update and delete entries of. My command prompt says entries have been updated and deleted but when I view my database in MongoDB the delete and update havn't actually happened. I don't understand why my command prompt says one thing but my database says another.

My database is called Customer and below is the code for Update:

Customer.find({}).toArray(function(err,array){              result = array[Math.floor(Math.random()*(array.length))];               if (err) throw err;                  personToUpdate = result.firstName;                  //console.log(personToUpdate);               });              var toUpdate = { firstName: personToUpdate };              var newTitle = names.getRandomTitle();              var newPhone = names.getRandomMobile();              var newEmail = names.getRandomFirstName() + names.getRandomSurName() + names.getRandomEmail();              var newDetails = { $set: {title: newTitle, mobileNum: newPhone, email: newEmail } };              Customer.updateOne(toUpdate, newDetails, function(err, res) {              if (err) throw err;                console.log("\nCustomer Updated: " + personToUpdate);                console.log("");              });  

Then here is my code for delete:

Customer.find({}).toArray(function(err,array){            result = array[Math.floor(Math.random()*(array.length))];            console.log(result);               if (err) throw err;                  personToDelete = result.firstName;                  //console.log("Deleting: " + personToDelete);               });                var toDelete = { firstName: personToDelete };            Customer.deleteOne(toDelete, function(err, obj) {            if (err) throw err;            console.log(personToDelete + " deleted");  

https://stackoverflow.com/questions/67249113/my-deleteone-and-updateone-functions-say-they-are-working-but-they-dont-actuall April 25, 2021 at 10:07AM