Regular Expressions

Regular expressions (regex) are powerful patterns used to match and manipulate text. They're essential for web scraping, data validation, and text processing.

Think of regex as a search tool on steroids. Instead of searching for exact text, you can search for patterns like "any email address" or "any phone number."

Common use cases include:

• Validating email addresses and phone numbers
• Extracting data from HTML and text
• Finding and replacing text patterns
• Parsing log files and structured data