Regex

Regex, short for regular expressions, is a sequence of characters that defines a search pattern for text processing. It is used for pattern matching, validation, and manipulation of strings in programming and text editing. Regex is supported by most programming languages and tools, enabling tasks like data extraction, input validation, and text replacement.

Also known as: Regular Expression, RegEx, RegExp, Pattern Matching, Regexp

Why learn Regex?

Developers should learn regex for tasks involving text processing, such as validating user inputs (e.g., email addresses or phone numbers), parsing logs or data files, and performing search-and-replace operations in code or documents. It is essential in fields like data science, web development, and system administration, where efficient string handling is critical.

Learning Resources

• docs: Regular-Expressions.info
• tutorial: RegexOne - Interactive Tutorial
• docs: MDN Web Docs: Regular Expressions
• tutorial: Regex Crossword - Game
• course: freeCodeCamp: Regular Expressions Course