Learn Regular Expressions

This tutorial teaches you regex in JavaScript through 34 screencasts. It explains regular expressions step-by-step from basic to advanced so that you don't fall off along the way. This ensures that you finally learn regex once and for all.

• Regex basics
• Test matches
• Literal strings
• Case insensitive
• Single character
• Match letters
• Match numbers
• Single match
• Multiple matches
• Wildcards
• Lazy matching
• Begins with match
• Ends with match
• Inclusive match
• Exclusive match
• Whitespace match
• Lookahead
• Capture groups

• Learn Regular Expressions
• 1. Regular Expressions Intro
• 2. Using the Test Method
• 3. Frontend Career Path
• 4. Match Literal Strings
• 5. Match a Literal String with Different Possibilities
• 6. Ignore Case While Matching
• 7. Extract Matches
• 8. Find More Than the First Match
• 9. Match Anything with Wildcard Period
• 10. Match Single Character with Multiple Possibilities
• 11. Match Letters of the Alphabet
• 12. Match Numbers and Letters of the Alphabet
• 13. Match Characters that Occur One or More Times
• 14. Match Characters that Occur One or More Times
• 15. Match Characters that Occur Zero or More Times
• 16. Find Characters with Lazy Matching
• 17. Find One or More Criminals in a Hunt
• 18. Match Beginning String Patterns
• 19. Match Ending String Patterns
• 20. Match All Letters and Numbers
• 21. Match Everything But Letters and Numbers
• 22. Match All Numbers
• 23. Match All Non-Numbers
• 24. Restrict Possible Usernames
• 25. Match Whitespace
• 26. Match Non-Whitespace Characters
• 27. Specify Upper and Lower Number of Matches
• 28. Specify Only the Lower Number of Matches
• 29. Specify Exact Number of Matches
• 30. Check for All or None
• 31. Positive and Negative Lookahead
• 32. Reuse Patterns Using Capture Groups
• 33. Use Capture Groups to Search and Replace
• 34. Remove Whitespace from Start and End
• 35. Regular Expressions Outro