I really liked Mastering Regular Expressions by Jeffrey Friedl. He goes in depth on what they are (with a bit of FSA background) and how a regex engine works. It helps conceptualize what's going on and how to know what your specific regex library is doing. Does that matter all that much? Not necessarily, but it's good to know things like whether or not your regex can blow in time complexity due to back tracking or... - Source: Hacker News / 7 days ago

The only good thing to come out of regular expressions is https://regexcrossword.com/. - Source: Hacker News / 5 months ago

I thought this crossword, where one can start learning regex step-by-step. A great app, though. https://regexcrossword.com/. - Source: Hacker News / 8 months ago

I love the less maniacal version of this https://regexcrossword.com/. Really useful for anyone who wants to get a little better at regex without hating themselves. Source: about 1 year ago

I used to have to look up regexes every time I needed to use them, but I was able to learn them pretty quickly with O'Reilly's Mastering Regular Expressions. Highly recommend that book plus https://regexcrossword.com/ for practice interpreting other people's expressions. Source: about 1 year ago

Alternatively, you can use an online markdown editor like StackEdit or HackMD. - Source: dev.to / 5 months ago

Use https://stackedit.io/ in the browser :). Source: 8 months ago

Markdown is awesome! But, when writing 1000 words+ articles, I quickly feel the need for a better experience. For years, I’ve used StackEdit — an open-source, in-browser Markdown editor — for editing all kinds of long-format Markdown text. That said, given my recent experience with WYSIWYG editors, I thought I could do something better. - Source: dev.to / 12 months ago

This is especially annoying as when I export from stackedit.io to HTML, then it just cuts off anything which is outside the greyed in code window! Source: 12 months ago

StackEdit[0] pretty much perfected what I needed out of a markdown editor - I just need somewhere to write my tickets/docs that wasn't Github so that I could format it properly while writing. I still use it from time to time [0]: https://stackedit.io/. - Source: Hacker News / about 1 year ago