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Discussion on: A Visual Guide to Regular Expression

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eecolor profile image
EECOLOR

Good write! When I explain regular expressions I tend to mention the following points:

  • Once you learn regular expressions, please remember that you barely ever need them. Things tend to look like regex nails ;-)
  • If your regular expression starts to look back at you in an intimidating fashion, you are probably better off using something else.
  • You should not use a regular expression for things that involve nesting (code, html, ...)

I also point people towards RegExr, especially the 'Tests' tab is amazing, make sure you also write tests for the things you do not want to match.

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dougaws profile image
Doug

The greatest danger using regular expressions is a global search and replace. I can't tell you how many times I've seen inadvertent changes cause down stream problems.

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amitness profile image
Amit Chaudhary Author

Great to know. I'll update the post with a link to Regexer.