RegexLearn And Other RegEx Resources

 RegexLearn is an intuitive online instruction led playground where you get to learn how to construct regular expressions. We also revisit other tools, advanced regex constructs, regex programming language portability and how to deter Regular expression Denial of Service attacks.

full article on i=programmer:

https://www.i-programmer.info/news/90-tools/15067-regexlearn-and-other-regex-resources.html