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Richard Külling
9,465 PointsThe Teacher's notes do not include the part about "special characters" as mentioned in the video at 1:40
Where / when can I find that information? Cheers!
3 Answers
jlampstack
23,932 PointsTry googling "RegEx Cheat Sheet pdf"
There are very handy cheat sheets you can refer to and even print for just about any programming language. They are great refreshers!
One of the first things I do before learning any new language is print a cheat sheet and use it as a guide before starting a Treehouse Track. I find it easier visually and like writing notes on paper.
Here's the first one I found... https://zeroturnaround.com/rebellabs/java-regular-expressions-cheat-sheet/
Richard Külling
9,465 PointsHave sent a mail about the missing notes, thanks!
Robert Aguirre
14,617 PointsTeachers notes: Question 4
The special characters you are referring to can be excluded with the \w character class. Using \w will match any alphanumeric character from the basic Latin alphabet, including the underscore. Equivalent to [A-Za-z0-9_], which will also result in excluding $%#$@.
You can read further on all the character classes here and more about regular expressions here.
Steven Parker
231,184 PointsSteven Parker
231,184 PointsYou can report course bugs as described on the Support page. And if you are the first to report it, you will get an "Exterminator"
badge!