One mnemonic that stuck with me: you can remember the start and end characters (/^foo$/) by imagining an animal, like a rhino: the ^ is the horn at the front, the $ is the long curvy tail at the end.
Show HN: Learn Regular Expressions with simple, interactive exercises
21–28 of 28 posts
Re: Show HN: Learn Regular Expressions with simple, interactive exercises
#22You should fix the checker to match the whole strings, not just substrings.
One can pass the following example with just \. :
Match cat.
Match 896.
Match ?=+.
Skip abc1
Re: Show HN: Learn Regular Expressions with simple, interactive exercises
#23This is one of the best online learning experiences I've ever had. I went through it twice and never felt uncomfortable with regular expressions afterwards. The author also does this for SQL, which I haven't tried: https://sqlbolt.com/ Are there any other online learning courses like this?
SqlBolt is fantastic. I got an entire team up to speed in sql by having them go through it.
Re: Show HN: Learn Regular Expressions with simple, interactive exercises
#24This is one of the best online learning experiences I've ever had. I went through it twice and never felt uncomfortable with regular expressions afterwards. The author also does this for SQL, which I haven't tried: https://sqlbolt.com/ Are there any other online learning courses like this?
A few others are CSS Grid Garden [0] and Flexbox Froggy [1], both multi-level games that teach CSS grid and flexbox techniques with one new concept per level. There's also Flexbox Zombies [2] which requires signup but is still fun and free.
Re: Show HN: Learn Regular Expressions with simple, interactive exercises
#25I just read man re_format but that's a lot more fun
Re: Show HN: Learn Regular Expressions with simple, interactive exercises
#26Also https://regexcrossword.com/ Very good practice to reinforce fundamentals after you're done regexone
I second this recommendation.
You need a lot of practice for a new language to stick and once you’ve done your first 1-2 tutorials and feel like you get kinda get it, actual tasks involving regex will seem far and between, but these crosswords are a great way to crystallize your new learnings.
And also fun to do!
Re: Show HN: Learn Regular Expressions with simple, interactive exercises
#27This was posted by a spam ring. The site has been submitted many times (https://news.ycombinator.com/from?site=regexone.com).
Would you please stop this? You're wasting your time. We ban these accounts and everything that you try to promote with them. Karma doesn't help.
Re: Show HN: Learn Regular Expressions with simple, interactive exercises
#28[deleted]