Using for projection to hide fields
import {AggregateBuilder} from 'mongodb-aggregate-builder';
const aggBuilder = new AggregateBuilder();
aggBuilder.project(hideFields('data', 'password'));
console.log(JSON.stringify(aggBuilder.build(), null, 2));
[
{
"$project": {
"data": 0,
"password": 0
}
}
]