Combine Filtering Documents in MongoDB Collections ($and, $or, $in, $eq, etc)

In this lesson, we learn that combining multiple criteria in MongoDB queries can be done using logical operators such as $and and $or.

We demonstrate how to create queries that filter documents based on various conditions, such as age and skills.

Additionally, we explore the use of the $in operator for matching any values in an array and the $all operator for ensuring all specified values are present.

This lesson provides essential skills for effective use of operators such as: $in, $nin, $lt, $lte, $gt, $gte, $eq, $ne (and many others) in querying MongoDB collections.