Regular expressions 101
A beginner's guide to learning regular expressions. Covers the basics like metacharacters, quantifiers, character classes, grouping and more. Helps you understand regular expressions through examples and exercises.
regex
regular-expressions
programming
beginner
Regular Expressions 101: A Beginner's Guide
A beginner's guide to learning regular expressions. Covers the basics like metacharacters, quantifiers, character classes, grouping and more. Helps you understand regular expressions through examples and exercises.
What is Regular expressions 101?
Regular Expressions 101 is a website dedicated to teaching beginners the basics of regular expressions. It starts with an introduction on what regular expressions are and why they are useful. It then covers all the core concepts like:
- Metacharacters - special characters like ., *, +, ?, ^, $ etc.
- Quantifiers - specify how many instances of a character/group/class must be present
- Character classes - allow you to match different types of characters
- Grouping - group parts of a regex together
- Boundaries - assertions like start and end of string or word
Each concept is explained through clear examples and visual diagrams. The site also contains interactive exercises so you can practice writing regular expressions for finding patterns in text. Solutions are provided to reinforce the right way.
By the end of the Regular Expressions 101 tutorial, a complete beginner would gain enough knowledge to start using regexes for basic text processing and searching tasks. The easy-to-understand format makes regex more approachable.
Regular expressions 101 Features
Features
- Covers regular expression basics like metacharacters, quantifiers, character classes, grouping
- Includes interactive exercises and quizzes to reinforce learning
- Provides clear explanations of concepts with examples
- Suitable for beginners with no prior regex knowledge
Pricing
- Free
Pros
Comprehensive introduction to regular expressions
Interactive and hands-on learning
Concise and easy to understand
Free and accessible
Cons
Does not cover advanced regex features
Limited exercises and examples
Web-based so requires internet connection
Official Links
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