I worked through these once a day (or was it per week?) several years ago, and it really ingrained regex rule into my brain.
See also: https://jimbly.github.io/regex-crossword/
For Python, I wrote a TUI app with 100+ interactive exercises: https://github.com/learnbyexample/TUI-apps/blob/main/PyRegexExercises (covers both re and regex modules)
I struggled with Puzzles, level 15.
Welcome to the RegEx community! This is a place where you can learn about and get help with regular expressions
A regular expression is a sequence of characters that specifies a match pattern in text. Theyre usually used for find, or find and replace operations on strings, or for input validation.
