Mongoose find() Certain Fields – Mastering JS

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How to Filter an Object by Key in JavaScript


Apr 27, 2022

To filter object properties in mongoose, you can use the select() function on the query.
The select() function allows you to select the fields you wish to return.


await Model.find({}).select('name age');

The _id property

MongoDB includes _id by default.
To exclude the _id when picking fields, you need to do .find().select({ name: 1, _id: 0 }) or .find().select('name -_id').
The 0 and - tells Mongoose and the MongoDB server to explicitly exclude _id.

await Model.find().select({ name: 1, _id: 0 });

Or

await Model.find().select({'name -_id'});


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