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$regex

src/data/roadmaps/mongodb/content/regex@PmfjHFz-DW69pNh_t13Nm.md

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$regex

The $regex operator in MongoDB provides regular expression pattern matching for string fields. It supports Perl-compatible regular expressions (PCRE) with options for case sensitivity, multiline matching, and extended syntax. $regex enables sophisticated text searching, pattern validation, and complex string filtering, though it may impact performance on large datasets without proper indexing.

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