Doesn't make sense to me. > Regular expressions (commonly known as "regex") are used for advanced pattern matching in strings. They can also be used to replace

Doesn't make sense to me. > Regular expressions (commonly known as "regex") are used for advanced pattern matching in strings. They can also be used to replace text, transform strings, or extract substrings. It's a very powerful domain-specific language that is purpose-built for string patterns and manipulation. Many general-purpose programming languages include regex engines that use similar, but often slightly different syntaxes to support the use of regex.