@denis
To use regular expressions in a MongoDB query, you can use the $regex
operator in the query document.
Here is an example of how to use the $regex
operator in a MongoDB query:
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|
db.collection.find({ field: { $regex: /pattern/ } }) |
This will find all documents in the collection where the value of the field
field matches the regular expression pattern
.
You can also use the $options
operator to specify options for the regular expression, such as case insensitivity. For example:
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|
db.collection.find({ field: { $regex: /pattern/i } }) |
This will find all documents in the collection where the value of the field
field matches the regular expression pattern
, ignoring case.
You can also use the $regex
operator in other MongoDB operators, such as $match
in the pipeline of an aggregate
function.
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db.collection.aggregate([ { $match: { field: { $regex: /pattern/ } } } ]) |
This will find all documents in the collection where the value of the field
field matches the regular expression pattern
and return them as part of the aggregation pipeline.