+- Hack Forums (https://hackforums.net)
+-- Forum: Tech (https://hackforums.net/forumdisplay.php?fid=444)
+--- Forum: Coding (https://hackforums.net/forumdisplay.php?fid=151)
+---- Forum: Software Development (https://hackforums.net/forumdisplay.php?fid=118)
+---- Thread: Regular Expressions (/showthread.php?tid=6332635)
Regular Expressions - Raijin - Sep 27, 2026
How did you learn regular expressions?
I never took the time to understand it properly.
It is so powerful and embedded so far across tech stacks. What is the best way to learn?
RE: Regular Expressions - Bastille - Sep 27, 2026
I've learned over a tryhackme room : https://tryhackme.com/room/catregex but I don't know if this one is part of the free or premium plan
However, to be honest, I use regex so rarely that I've forgot 90%. And when I need I go with an LLM... (shame)
EDIT : to learn and practice you can go with an LLM, you take notes, and then ask for exercices / challenges / cases.
RE: Regular Expressions - Terry A. Davis - Sep 27, 2026
https://regex101.com/ - then just lots, and lots. Also, lots. of reading.
RE: Regular Expressions - Raijin - Sep 28, 2026
(Sep 27, 2026 08:19 PM)Bastille Wrote: I've learned over a tryhackme room : https://tryhackme.com/room/catregex but I don't know if this one is part of the free or premium plan
However, to be honest, I use regex so rarely that I've forgot 90%. And when I need I go with an LLM... (shame)
EDIT : to learn and practice you can go with an LLM, you take notes, and then ask for exercices / challenges / cases.
Okay I will try AI. Regex is used so much in scripting, programming, operating systems.
(Sep 27, 2026 09:52 PM)Terry A. Davis Wrote: https://regex101.com/ - then just lots, and lots. Also, lots. of reading.
That site doesn’t teach anything I think it’s just an application. So find a book to read?
RE: Regular Expressions - Terry A. Davis - Sep 28, 2026
(Sep 28, 2026 06:12 AM)Raijin Wrote: Okay I will try AI. Regex is used so much in scripting, programming, operating systems.
That site doesn’t teach anything I think it’s just an application. So find a book to read?
I make extensive use of their quick refernce. I would say just find practical reasons to need to use it, then learn how you use it to solve that, and experiment.
RE: Regular Expressions - Raijin - Sep 29, 2026
(Sep 28, 2026 02:39 PM)Terry A. Davis Wrote: I make extensive use of their quick refernce. I would say just find practical reasons to need to use it, then learn how you use it to solve that, and experiment.
I purchased a book from the bookstore about the commands I want to use and it explains about regular expression too.