Master Regular Expressions
Start from scratch and systematically learn this powerful text processing tool.
Includes interactive exercises, real-world examples, and visual explanations.
Why Learn Regular Expressions?
Regex is an essential skill for programmers that will dramatically boost your productivity
Form Validation
Validate emails, phone numbers, IDs with one line of code. Improve data integrity instantly.
Text Extraction
Extract key info from logs, parse HTML content. Significantly reduce development cost.
Data Cleaning
Remove special characters, normalize formats, batch process data. Ensure consistency.
Boost Efficiency
Reduce complex string operations from dozens of lines to one. Improve productivity by 30-50%.
Log Analysis
Quickly extract timestamps, IPs, error codes. Automate monitoring and troubleshooting.
Career Growth
Regex proficiency is a key measure of developer expertise. Enhance your competitiveness.
Learning Path
7 Systematic Chapters, From Beginner to Expert
Why Learn Regex?
Use cases and learning value
Character Matching Guide
Fuzzy matching, character classes, quantifiers
Position Matching Guide
Anchors, word boundaries, lookaheads
The Power of Parentheses
Grouping, capture, backreferences
Backtracking Principles
Understanding matching process and performance
Reading and Writing
Decomplexifying regex, balance principles
Practical Applications
Four core API operations and real-world projects
Interactive Learning
Not Just Reading, It's Practice
π― Real-time Regex Tester
Input regex patterns and test text, see matching results instantly. Supports all flags and group highlighting.
Go to Playground βπ Practice Problem System
Exercises for each chapter, from multiple choice to real-world tasks. Instant feedback to reinforce learning.
Start Practicing βπ Visual Explanations
Break down complex regex into understandable parts. Each component has detailed explanations to lower the learning curve.
View Cheatsheet β Online Toolsπ Progress Tracking
Automatically save learning progress, continue anytime. Track completed chapters and exercises.
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No prior knowledge needed. Follow us step by step to master this powerful tool.
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